21320108

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{18443}}^1$

素因数の和:18481

約数の個数: 18

約数和(自身を含む): 39636156

約数和(自身を除く): 18316048

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 18443, 36886, 73772, 313531, 627062, 1254124, 5330027, 10660054, 21320108]

約数ペア:

[(1, 21320108), (2, 10660054), (4, 5330027), (17, 1254124), (34, 627062), (68, 313531), (289, 73772), (578, 36886), (1156, 18443)]