Question

totient function for value 16?
​

Answer 1

?????????????????????????

Answer 2

Answer:

Euler's Totient Function Values For n = 1 to 500, with Divisor Lists

n φ(n) List of Divisors

38 18 1, 2, 19, 38

39 24 1, 3, 13, 39

40 16 1, 2, 4, 5, 8, 10, 20, 40

41 40 1, 41