20518984

素因数分解:

$2^3\times {\mathrm{227}}^1\times {\mathrm{11299}}^1$

素因数の和:11532

約数の個数: 16

約数和(自身を含む): 38646000

約数和(自身を除く): 18127016

約数列:

[1, 2, 4, 8, 227, 454, 908, 1816, 11299, 22598, 45196, 90392, 2564873, 5129746, 10259492, 20518984]

約数ペア:

[(1, 20518984), (2, 10259492), (4, 5129746), (8, 2564873), (227, 90392), (454, 45196), (908, 22598), (1816, 11299)]