420210873

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{657607}}^1$

素因数の和:657684

約数の個数: 12

約数和(自身を含む): 615521088

約数和(自身を除く): 195310215

約数列:

[1, 3, 9, 71, 213, 639, 657607, 1972821, 5918463, 46690097, 140070291, 420210873]

約数ペア:

[(1, 420210873), (3, 140070291), (9, 46690097), (71, 5918463), (213, 1972821), (639, 657607)]