20954781

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{4241}}^1$

素因数の和:4314

約数の個数: 20

約数和(自身を含む): 31823484

約数和(自身を除く): 10868703

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4241, 4941, 12723, 38169, 114507, 258701, 343521, 776103, 2328309, 6984927, 20954781]

約数ペア:

[(1, 20954781), (3, 6984927), (9, 2328309), (27, 776103), (61, 343521), (81, 258701), (183, 114507), (549, 38169), (1647, 12723), (4241, 4941)]