18217618

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{3449}}^1$

素因数の和:3609

約数の個数: 16

約数和(自身を含む): 28980000

約数和(自身を除く): 10762382

約数列:

[1, 2, 19, 38, 139, 278, 2641, 3449, 5282, 6898, 65531, 131062, 479411, 958822, 9108809, 18217618]

約数ペア:

[(1, 18217618), (2, 9108809), (19, 958822), (38, 479411), (139, 131062), (278, 65531), (2641, 6898), (3449, 5282)]