20456121

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6451}}^1$

素因数の和:6612

約数の個数: 16

約数和(自身を含む): 31382528

約数和(自身を除く): 10926407

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6451, 19353, 45157, 135471, 974101, 2922303, 6818707, 20456121]

約数ペア:

[(1, 20456121), (3, 6818707), (7, 2922303), (21, 974101), (151, 135471), (453, 45157), (1057, 19353), (3171, 6451)]