18688418

素因数分解:

$2^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{4211}}^1$

素因数の和:4537

約数の個数: 16

約数和(自身を含む): 32145984

約数和(自身を除く): 13457566

約数列:

[1, 2, 7, 14, 317, 634, 2219, 4211, 4438, 8422, 29477, 58954, 1334887, 2669774, 9344209, 18688418]

約数ペア:

[(1, 18688418), (2, 9344209), (7, 2669774), (14, 1334887), (317, 58954), (634, 29477), (2219, 8422), (4211, 4438)]