20472681

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:776

約数の個数: 16

約数和(自身を含む): 27967680

約数和(自身を除く): 7494999

約数列:

[1, 3, 53, 159, 331, 389, 993, 1167, 17543, 20617, 52629, 61851, 128759, 386277, 6824227, 20472681]

約数ペア:

[(1, 20472681), (3, 6824227), (53, 386277), (159, 128759), (331, 61851), (389, 52629), (993, 20617), (1167, 17543)]