20809818

素因数分解:

$2^1\times 3^3\times {\mathrm{73}}^1\times {\mathrm{5279}}^1$

素因数の和:5363

約数の個数: 32

約数和(自身を含む): 46886400

約数和(自身を除く): 26076582

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 146, 219, 438, 657, 1314, 1971, 3942, 5279, 10558, 15837, 31674, 47511, 95022, 142533, 285066, 385367, 770734, 1156101, 2312202, 3468303, 6936606, 10404909, 20809818]

約数ペア:

[(1, 20809818), (2, 10404909), (3, 6936606), (6, 3468303), (9, 2312202), (18, 1156101), (27, 770734), (54, 385367), (73, 285066), (146, 142533), (219, 95022), (438, 47511), (657, 31674), (1314, 15837), (1971, 10558), (3942, 5279)]