21608477

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{383}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 24772608

約数和(自身を除く): 3164131

約数列:

[1, 11, 23, 223, 253, 383, 2453, 4213, 5129, 8809, 56419, 85409, 96899, 939499, 1964407, 21608477]

約数ペア:

[(1, 21608477), (11, 1964407), (23, 939499), (223, 96899), (253, 85409), (383, 56419), (2453, 8809), (4213, 5129)]