12978207

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{389}}^1$

素因数の和:743

約数の個数: 24

約数和(自身を含む): 20563920

約数和(自身を除く): 7585713

約数列:

[1, 3, 9, 11, 33, 99, 337, 389, 1011, 1167, 3033, 3501, 3707, 4279, 11121, 12837, 33363, 38511, 131093, 393279, 1179837, 1442023, 4326069, 12978207]

約数ペア:

[(1, 12978207), (3, 4326069), (9, 1442023), (11, 1179837), (33, 393279), (99, 131093), (337, 38511), (389, 33363), (1011, 12837), (1167, 11121), (3033, 4279), (3501, 3707)]