20391076

素因数分解:

$2^2\times {\mathrm{113}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 36340920

約数和(自身を除く): 15949844

約数列:

[1, 2, 4, 113, 197, 226, 229, 394, 452, 458, 788, 916, 22261, 25877, 44522, 45113, 51754, 89044, 90226, 103508, 180452, 5097769, 10195538, 20391076]

約数ペア:

[(1, 20391076), (2, 10195538), (4, 5097769), (113, 180452), (197, 103508), (226, 90226), (229, 89044), (394, 51754), (452, 45113), (458, 44522), (788, 25877), (916, 22261)]