12420921

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{409}}^1$

素因数の和:656

約数の個数: 16

約数和(自身を含む): 17003520

約数和(自身を除く): 4582599

約数列:

[1, 3, 53, 159, 191, 409, 573, 1227, 10123, 21677, 30369, 65031, 78119, 234357, 4140307, 12420921]

約数ペア:

[(1, 12420921), (3, 4140307), (53, 234357), (159, 78119), (191, 65031), (409, 30369), (573, 21677), (1227, 10123)]