20513548

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3671}}^1$

素因数の和:3813

約数の個数: 24

約数和(自身を含む): 39481344

約数和(自身を除く): 18967796

約数列:

[1, 2, 4, 11, 22, 44, 127, 254, 508, 1397, 2794, 3671, 5588, 7342, 14684, 40381, 80762, 161524, 466217, 932434, 1864868, 5128387, 10256774, 20513548]

約数ペア:

[(1, 20513548), (2, 10256774), (4, 5128387), (11, 1864868), (22, 932434), (44, 466217), (127, 161524), (254, 80762), (508, 40381), (1397, 14684), (2794, 7342), (3671, 5588)]