20752839

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 30859920

約数和(自身を除く): 10107081

約数列:

[1, 3, 9, 53, 139, 159, 313, 417, 477, 939, 1251, 2817, 7367, 16589, 22101, 43507, 49767, 66303, 130521, 149301, 391563, 2305871, 6917613, 20752839]

約数ペア:

[(1, 20752839), (3, 6917613), (9, 2305871), (53, 391563), (139, 149301), (159, 130521), (313, 66303), (417, 49767), (477, 43507), (939, 22101), (1251, 16589), (2817, 7367)]