212866515

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{25849}}^1$

素因数の和:25924

約数の個数: 32

約数和(自身を含む): 384648000

約数和(自身を除く): 171781485

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2745, 8235, 25849, 77547, 129245, 232641, 387735, 697923, 1163205, 1576789, 3489615, 4730367, 7883945, 14191101, 23651835, 42573303, 70955505, 212866515]

約数ペア:

[(1, 212866515), (3, 70955505), (5, 42573303), (9, 23651835), (15, 14191101), (27, 7883945), (45, 4730367), (61, 3489615), (135, 1576789), (183, 1163205), (305, 697923), (549, 387735), (915, 232641), (1647, 129245), (2745, 77547), (8235, 25849)]