Category

Multiplicative functions

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greatest common divisor

largest divisor of two integers or polynomials

Euler's totient function

function which gives the number of integers relatively prime to and not greater than its input

Möbius function

multiplicative function in number theory

multiplicative function

arithmetic function that is multiplicative for every pair of coprime integers

Liouville function

arithmetic function

radical of an integer

the product of the prime factors of a given integer

giving the Fourier coefficients of the Ramanujan modular form

Dedekind psi function

A function in mathematics (number theory)

Lehmer's totient problem

unsolved problem in mathematics

completely multiplicative function

arithmetic function that is multiplicative for every pair of integers, not necessarily coprime

Jordan's totient function

A function in mathematics, number theory

Carmichael's totient function conjecture

mathematics concept

completely multiplicative function on positive integers