20659456

素因数分解:

$2^8\times {\mathrm{80701}}^1$

素因数の和:80717

約数の個数: 18

約数和(自身を含む): 41238722

約数和(自身を除く): 20579266

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 80701, 161402, 322804, 645608, 1291216, 2582432, 5164864, 10329728, 20659456]

約数ペア:

[(1, 20659456), (2, 10329728), (4, 5164864), (8, 2582432), (16, 1291216), (32, 645608), (64, 322804), (128, 161402), (256, 80701)]