721000251

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{1161031}}^1$

素因数の和:1161063

約数の個数: 16

約数和(自身を含む): 1114590720

約数和(自身を除く): 393590469

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 1161031, 3483093, 10449279, 26703713, 31347837, 80111139, 240333417, 721000251]

約数ペア:

[(1, 721000251), (3, 240333417), (9, 80111139), (23, 31347837), (27, 26703713), (69, 10449279), (207, 3483093), (621, 1161031)]