20828943

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1201}}^1$

素因数の和:1295

約数の個数: 24

約数和(自身を含む): 31502016

約数和(自身を除く): 10673073

約数列:

[1, 3, 9, 41, 47, 123, 141, 369, 423, 1201, 1927, 3603, 5781, 10809, 17343, 49241, 56447, 147723, 169341, 443169, 508023, 2314327, 6942981, 20828943]

約数ペア:

[(1, 20828943), (3, 6942981), (9, 2314327), (41, 508023), (47, 443169), (123, 169341), (141, 147723), (369, 56447), (423, 49241), (1201, 17343), (1927, 10809), (3603, 5781)]