18749998

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1\times {\mathrm{821}}^1$

素因数の和:1443

約数の個数: 16

約数和(自身を含む): 29690640

約数和(自身を除く): 10940642

約数列:

[1, 2, 19, 38, 601, 821, 1202, 1642, 11419, 15599, 22838, 31198, 493421, 986842, 9374999, 18749998]

約数ペア:

[(1, 18749998), (2, 9374999), (19, 986842), (38, 493421), (601, 31198), (821, 22838), (1202, 15599), (1642, 11419)]