Question

sigma over phi

Answer 1

Let \[σ(n)\] be the sum of the positive divisors of an integer n and \[ϕ(n)\] be the number of positive integers smaller than n that are coprime to n. If p is a prime number, what is the maximum value \[\huge \frac{ σ(p)}{ϕ(p)}\]

Answer 2

what?

Answer 3

lol its elementary number theory

Answer 4

You may choose to read the following blog post on Euler's Theorem

Answer 5

is it\[\frac{p+1}{p-1}\]

Answer 6

@shubhamsrg @UnkleRhaukus

Answer 7

I am also stuck on this question at the moment.

Answer 8

http://blog.brilliant.org/2012/09/06/eulers-theorem/

Answer 9

@satellite73 @phi @ajprincess