64721839

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 89123328

約数和(自身を除く): 24401489

約数列:

[1, 7, 13, 17, 23, 91, 107, 119, 161, 221, 289, 299, 391, 749, 1391, 1547, 1819, 2023, 2093, 2461, 2737, 3757, 5083, 6647, 9737, 12733, 17227, 23647, 26299, 30923, 31993, 35581, 41837, 46529, 86411, 165529, 216461, 223951, 292859, 401999, 543881, 604877, 711229, 2813993, 3807167, 4978603, 9245977, 64721839]

約数ペア:

[(1, 64721839), (7, 9245977), (13, 4978603), (17, 3807167), (23, 2813993), (91, 711229), (107, 604877), (119, 543881), (161, 401999), (221, 292859), (289, 223951), (299, 216461), (391, 165529), (749, 86411), (1391, 46529), (1547, 41837), (1819, 35581), (2023, 31993), (2093, 30923), (2461, 26299), (2737, 23647), (3757, 17227), (5083, 12733), (6647, 9737)]