The statement that all integers occur as multiplicities of its variance function is the basis of Sierpi?ki's (*) conjecture.
Along with the divisor function, it appears in the denominator of the summation used to determine Silverman's constant. The statement that all integers occur as multiplicities of its variance function is the basis of Sierpi?ki's (*) conjecture. Carmicheal's conjecture states that it is possible to have two integer inputs that yield the same output from this function. It can be used to generalize Fermat's little theorem. For 10 points, name this function that gives the number of positive integers that are relatively prime to given number.
Along with the divisor function, it appears in the denominator of the summation used to determine Silverman's constant.
Euler {totient} function