18441820

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{5657}}^1$

素因数の和:5829

約数の個数: 24

約数和(自身を含む): 38972304

約数和(自身を除く): 20530484

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 5657, 11314, 22628, 28285, 56570, 113140, 922091, 1844182, 3688364, 4610455, 9220910, 18441820]

約数ペア:

[(1, 18441820), (2, 9220910), (4, 4610455), (5, 3688364), (10, 1844182), (20, 922091), (163, 113140), (326, 56570), (652, 28285), (815, 22628), (1630, 11314), (3260, 5657)]