72470781

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{20807}}^1$

素因数の和:20862

約数の個数: 20

約数和(自身を含む): 110781792

約数和(自身を除く): 38311011

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 20807, 62421, 187263, 561789, 894701, 1685367, 2684103, 8052309, 24156927, 72470781]

約数ペア:

[(1, 72470781), (3, 24156927), (9, 8052309), (27, 2684103), (43, 1685367), (81, 894701), (129, 561789), (387, 187263), (1161, 62421), (3483, 20807)]