551991

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:446

約数の個数: 16

約数和(自身を含む): 823680

約数和(自身を除く): 271689

約数列:

[1, 3, 11, 33, 43, 129, 389, 473, 1167, 1419, 4279, 12837, 16727, 50181, 183997, 551991]

約数ペア:

[(1, 551991), (3, 183997), (11, 50181), (33, 16727), (43, 12837), (129, 4279), (389, 1419), (473, 1167)]