21690818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{2017}}^1$

素因数の和:2321

約数の個数: 16

約数和(自身を含む): 34386720

約数和(自身を除く): 12695902

約数列:

[1, 2, 19, 38, 283, 566, 2017, 4034, 5377, 10754, 38323, 76646, 570811, 1141622, 10845409, 21690818]

約数ペア:

[(1, 21690818), (2, 10845409), (19, 1141622), (38, 570811), (283, 76646), (566, 38323), (2017, 10754), (4034, 5377)]