21988048

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{8431}}^1$

素因数の和:8602

約数の個数: 20

約数和(自身を含む): 42868288

約数和(自身を除く): 20880240

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 8431, 16862, 33724, 67448, 134896, 1374253, 2748506, 5497012, 10994024, 21988048]

約数ペア:

[(1, 21988048), (2, 10994024), (4, 5497012), (8, 2748506), (16, 1374253), (163, 134896), (326, 67448), (652, 33724), (1304, 16862), (2608, 8431)]