20693945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3571}}^1$

素因数の和:3656

約数の個数: 16

約数和(自身を含む): 26575680

約数和(自身を除く): 5881735

約数列:

[1, 5, 19, 61, 95, 305, 1159, 3571, 5795, 17855, 67849, 217831, 339245, 1089155, 4138789, 20693945]

約数ペア:

[(1, 20693945), (5, 4138789), (19, 1089155), (61, 339245), (95, 217831), (305, 67849), (1159, 17855), (3571, 5795)]