331388127

素因数分解:

$3^2\times 7^2\times {\mathrm{751447}}^1$

素因数の和:751467

約数の個数: 18

約数和(自身を含む): 556822968

約数和(自身を除く): 225434841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 751447, 2254341, 5260129, 6763023, 15780387, 36820903, 47341161, 110462709, 331388127]

約数ペア:

[(1, 331388127), (3, 110462709), (7, 47341161), (9, 36820903), (21, 15780387), (49, 6763023), (63, 5260129), (147, 2254341), (441, 751447)]