20111216

素因数分解:

$2^4\times {\mathrm{821}}^1\times {\mathrm{1531}}^1$

素因数の和:2360

約数の個数: 20

約数和(自身を含む): 39038424

約数和(自身を除く): 18927208

約数列:

[1, 2, 4, 8, 16, 821, 1531, 1642, 3062, 3284, 6124, 6568, 12248, 13136, 24496, 1256951, 2513902, 5027804, 10055608, 20111216]

約数ペア:

[(1, 20111216), (2, 10055608), (4, 5027804), (8, 2513902), (16, 1256951), (821, 24496), (1531, 13136), (1642, 12248), (3062, 6568), (3284, 6124)]