21881116

素因数分解:

$2^2\times {\mathrm{1229}}^1\times {\mathrm{4451}}^1$

素因数の和:5684

約数の個数: 12

約数和(自身を含む): 38331720

約数和(自身を除く): 16450604

約数列:

[1, 2, 4, 1229, 2458, 4451, 4916, 8902, 17804, 5470279, 10940558, 21881116]

約数ペア:

[(1, 21881116), (2, 10940558), (4, 5470279), (1229, 17804), (2458, 8902), (4451, 4916)]