208701279

素因数分解:

$3^5\times {\mathrm{137}}^1\times {\mathrm{6269}}^1$

素因数の和:6421

約数の個数: 24

約数和(自身を含む): 314954640

約数和(自身を除く): 106253361

約数列:

[1, 3, 9, 27, 81, 137, 243, 411, 1233, 3699, 6269, 11097, 18807, 33291, 56421, 169263, 507789, 858853, 1523367, 2576559, 7729677, 23189031, 69567093, 208701279]

約数ペア:

[(1, 208701279), (3, 69567093), (9, 23189031), (27, 7729677), (81, 2576559), (137, 1523367), (243, 858853), (411, 507789), (1233, 169263), (3699, 56421), (6269, 33291), (11097, 18807)]