21080128

素因数分解:

$2^6\times {\mathrm{227}}^1\times {\mathrm{1451}}^1$

素因数の和:1690

約数の個数: 28

約数和(自身を含む): 42044112

約数和(自身を除く): 20963984

約数列:

[1, 2, 4, 8, 16, 32, 64, 227, 454, 908, 1451, 1816, 2902, 3632, 5804, 7264, 11608, 14528, 23216, 46432, 92864, 329377, 658754, 1317508, 2635016, 5270032, 10540064, 21080128]

約数ペア:

[(1, 21080128), (2, 10540064), (4, 5270032), (8, 2635016), (16, 1317508), (32, 658754), (64, 329377), (227, 92864), (454, 46432), (908, 23216), (1451, 14528), (1816, 11608), (2902, 7264), (3632, 5804)]