20180511

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1259}}^1$

素因数の和:1415

約数の個数: 24

約数和(自身を含む): 31646160

約数和(自身を除く): 11465649

約数列:

[1, 3, 9, 13, 39, 117, 137, 411, 1233, 1259, 1781, 3777, 5343, 11331, 16029, 16367, 49101, 147303, 172483, 517449, 1552347, 2242279, 6726837, 20180511]

約数ペア:

[(1, 20180511), (3, 6726837), (9, 2242279), (13, 1552347), (39, 517449), (117, 172483), (137, 147303), (411, 49101), (1233, 16367), (1259, 16029), (1781, 11331), (3777, 5343)]