28860831

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:495

約数の個数: 24

約数和(自身を含む): 42625440

約数和(自身を除く): 13764609

約数列:

[1, 3, 9, 89, 137, 263, 267, 411, 789, 801, 1233, 2367, 12193, 23407, 36031, 36579, 70221, 108093, 109737, 210663, 324279, 3206759, 9620277, 28860831]

約数ペア:

[(1, 28860831), (3, 9620277), (9, 3206759), (89, 324279), (137, 210663), (263, 109737), (267, 108093), (411, 70221), (789, 36579), (801, 36031), (1233, 23407), (2367, 12193)]