21188116

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3529}}^1$

素因数の和:3631

約数の個数: 24

約数和(自身を含む): 39536000

約数和(自身を除く): 18347884

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 3002, 3529, 6004, 7058, 14116, 67051, 134102, 268204, 278791, 557582, 1115164, 5297029, 10594058, 21188116]

約数ペア:

[(1, 21188116), (2, 10594058), (4, 5297029), (19, 1115164), (38, 557582), (76, 278791), (79, 268204), (158, 134102), (316, 67051), (1501, 14116), (3002, 7058), (3529, 6004)]