## Divisor Function!

### Divisor Function!

Please someone help me understand the $Divisor function$ and $Sigma function$. The definition in Wiki is just too hard for me to understand. You can also suggest books on this topic.

Please

**Install $L^AT_EX$ fonts**in your PC for better looking equations,**Learn****how to write equations**, and**don't forget**to read**Forum Guide and Rules.****"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes**### Re: Divisor Function!

good question . i wanted to say the same thing .

### Re: Divisor Function!

Ye. I want to know too

**A man is not finished when he's defeated, he's finished when he quits.**

### Re: Divisor Function!

I am also interested........

### Re: Divisor Function!

Read 104 number theory problems. It's first 70 pages are good introduction to number theory for the beginners.

http://www.kmcbd.org/books

http://www.kmcbd.org/books

"Inspiration is needed in geometry, just as much as in poetry." -- Aleksandr Pushkin

Please

Please

**install LaTeX fonts**in your PC for better looking equations,**learn****how to write equations**, and**don't forget**to read Forum Guide and Rules.### Re: Divisor Function!

I think you meant $\tau (n)$ and $\sigma (n)$.For these Moon's suggestion is appropaite

One one thing is neutral in the universe, that is $0$.

### Re: Divisor Function!

Thnx moon vai, masum vai!!

Please

**Install $L^AT_EX$ fonts**in your PC for better looking equations,**Learn****how to write equations**, and**don't forget**to read**Forum Guide and Rules.****"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes**### Re: Divisor Function!

yap ..........thanks from me too ( irrelevant post !!)

### Re: Divisor Function!

Yes,there lies the cause of not using any reputation system,if so someone might rate you low and you would be sad

One one thing is neutral in the universe, that is $0$.