18111225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{757}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 33837120

約数和(自身を除く): 15725895

約数列:

[1, 3, 5, 11, 15, 25, 29, 33, 55, 75, 87, 145, 165, 275, 319, 435, 725, 757, 825, 957, 1595, 2175, 2271, 3785, 4785, 7975, 8327, 11355, 18925, 21953, 23925, 24981, 41635, 56775, 65859, 109765, 124905, 208175, 241483, 329295, 548825, 624525, 724449, 1207415, 1646475, 3622245, 6037075, 18111225]

約数ペア:

[(1, 18111225), (3, 6037075), (5, 3622245), (11, 1646475), (15, 1207415), (25, 724449), (29, 624525), (33, 548825), (55, 329295), (75, 241483), (87, 208175), (145, 124905), (165, 109765), (275, 65859), (319, 56775), (435, 41635), (725, 24981), (757, 23925), (825, 21953), (957, 18925), (1595, 11355), (2175, 8327), (2271, 7975), (3785, 4785)]