18390951

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 27307280

約数和(自身を除く): 8916329

約数列:

[1, 3, 9, 61, 139, 183, 241, 417, 549, 723, 1251, 2169, 8479, 14701, 25437, 33499, 44103, 76311, 100497, 132309, 301491, 2043439, 6130317, 18390951]

約数ペア:

[(1, 18390951), (3, 6130317), (9, 2043439), (61, 301491), (139, 132309), (183, 100497), (241, 76311), (417, 44103), (549, 33499), (723, 25437), (1251, 14701), (2169, 8479)]