18763731

素因数分解:

$3^6\times 7^1\times {\mathrm{3677}}^1$

素因数の和:3702

約数の個数: 28

約数和(自身を含む): 32160432

約数和(自身を除く): 13396701

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3677, 5103, 11031, 25739, 33093, 77217, 99279, 231651, 297837, 694953, 893511, 2084859, 2680533, 6254577, 18763731]

約数ペア:

[(1, 18763731), (3, 6254577), (7, 2680533), (9, 2084859), (21, 893511), (27, 694953), (63, 297837), (81, 231651), (189, 99279), (243, 77217), (567, 33093), (729, 25739), (1701, 11031), (3677, 5103)]