21017288

素因数分解:

$2^3\times {\mathrm{211}}^1\times {\mathrm{12451}}^1$

素因数の和:12668

約数の個数: 16

約数和(自身を含む): 39597360

約数和(自身を除く): 18580072

約数列:

[1, 2, 4, 8, 211, 422, 844, 1688, 12451, 24902, 49804, 99608, 2627161, 5254322, 10508644, 21017288]

約数ペア:

[(1, 21017288), (2, 10508644), (4, 5254322), (8, 2627161), (211, 99608), (422, 49804), (844, 24902), (1688, 12451)]