20322512

素因数分解:

$2^4\times 7^1\times {\mathrm{421}}^1\times {\mathrm{431}}^1$

素因数の和:867

約数の個数: 40

約数和(自身を含む): 45211392

約数和(自身を除く): 24888880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 421, 431, 842, 862, 1684, 1724, 2947, 3017, 3368, 3448, 5894, 6034, 6736, 6896, 11788, 12068, 23576, 24136, 47152, 48272, 181451, 362902, 725804, 1270157, 1451608, 2540314, 2903216, 5080628, 10161256, 20322512]

約数ペア:

[(1, 20322512), (2, 10161256), (4, 5080628), (7, 2903216), (8, 2540314), (14, 1451608), (16, 1270157), (28, 725804), (56, 362902), (112, 181451), (421, 48272), (431, 47152), (842, 24136), (862, 23576), (1684, 12068), (1724, 11788), (2947, 6896), (3017, 6736), (3368, 6034), (3448, 5894)]