12920769

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 20275200

約数和(自身を除く): 7354431

約数列:

[1, 3, 9, 27, 31, 43, 93, 129, 279, 359, 387, 837, 1077, 1161, 1333, 3231, 3999, 9693, 11129, 11997, 15437, 33387, 35991, 46311, 100161, 138933, 300483, 416799, 478547, 1435641, 4306923, 12920769]

約数ペア:

[(1, 12920769), (3, 4306923), (9, 1435641), (27, 478547), (31, 416799), (43, 300483), (93, 138933), (129, 100161), (279, 46311), (359, 35991), (387, 33387), (837, 15437), (1077, 11997), (1161, 11129), (1333, 9693), (3231, 3999)]