668889291

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{4003}}^1$

素因数の和:4195

約数の個数: 32

約数和(自身を含む): 1042961920

約数和(自身を除く): 374072629

約数列:

[1, 3, 7, 21, 73, 109, 219, 327, 511, 763, 1533, 2289, 4003, 7957, 12009, 23871, 28021, 55699, 84063, 167097, 292219, 436327, 876657, 1308981, 2045533, 3054289, 6136599, 9162867, 31851871, 95555613, 222963097, 668889291]

約数ペア:

[(1, 668889291), (3, 222963097), (7, 95555613), (21, 31851871), (73, 9162867), (109, 6136599), (219, 3054289), (327, 2045533), (511, 1308981), (763, 876657), (1533, 436327), (2289, 292219), (4003, 167097), (7957, 84063), (12009, 55699), (23871, 28021)]