8557989

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 13161984

約数和(自身を除く): 4603995

約数列:

[1, 3, 11, 33, 37, 43, 111, 129, 163, 407, 473, 489, 1221, 1419, 1591, 1793, 4773, 5379, 6031, 7009, 17501, 18093, 21027, 52503, 66341, 77099, 199023, 231297, 259333, 777999, 2852663, 8557989]

約数ペア:

[(1, 8557989), (3, 2852663), (11, 777999), (33, 259333), (37, 231297), (43, 199023), (111, 77099), (129, 66341), (163, 52503), (407, 21027), (473, 18093), (489, 17501), (1221, 7009), (1419, 6031), (1591, 5379), (1793, 4773)]