7778997

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{701}}^1$

素因数の和:850

約数の個数: 20

約数和(自身を含む): 11721996

約数和(自身を除く): 3942999

約数列:

[1, 3, 9, 27, 81, 137, 411, 701, 1233, 2103, 3699, 6309, 11097, 18927, 56781, 96037, 288111, 864333, 2592999, 7778997]

約数ペア:

[(1, 7778997), (3, 2592999), (9, 864333), (27, 288111), (81, 96037), (137, 56781), (411, 18927), (701, 11097), (1233, 6309), (2103, 3699)]