645263997

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2243}}^1$

素因数の和:2382

約数の個数: 48

約数和(自身を含む): 1064194560

約数和(自身を除く): 418930563

約数列:

[1, 3, 7, 19, 21, 49, 57, 103, 133, 147, 309, 399, 721, 931, 1957, 2163, 2243, 2793, 5047, 5871, 6729, 13699, 15141, 15701, 41097, 42617, 47103, 95893, 109907, 127851, 231029, 287679, 298319, 329721, 693087, 894957, 1617203, 2088233, 4389551, 4851609, 6264699, 11320421, 13168653, 30726857, 33961263, 92180571, 215087999, 645263997]

約数ペア:

[(1, 645263997), (3, 215087999), (7, 92180571), (19, 33961263), (21, 30726857), (49, 13168653), (57, 11320421), (103, 6264699), (133, 4851609), (147, 4389551), (309, 2088233), (399, 1617203), (721, 894957), (931, 693087), (1957, 329721), (2163, 298319), (2243, 287679), (2793, 231029), (5047, 127851), (5871, 109907), (6729, 95893), (13699, 47103), (15141, 42617), (15701, 41097)]