398378007

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{80627}}^1$

素因数の和:80700

約数の個数: 20

約数和(自身を含む): 604871256

約数和(自身を除く): 206493249

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 80627, 241881, 725643, 2176929, 4918247, 6530787, 14754741, 44264223, 132792669, 398378007]

約数ペア:

[(1, 398378007), (3, 132792669), (9, 44264223), (27, 14754741), (61, 6530787), (81, 4918247), (183, 2176929), (549, 725643), (1647, 241881), (4941, 80627)]