21045167

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{787}}^1$

素因数の和:839

約数の個数: 24

約数和(自身を含む): 26410608

約数和(自身を除く): 5365441

約数列:

[1, 11, 13, 17, 121, 143, 187, 221, 787, 1573, 2057, 2431, 8657, 10231, 13379, 26741, 95227, 112541, 147169, 173927, 1237951, 1618859, 1913197, 21045167]

約数ペア:

[(1, 21045167), (11, 1913197), (13, 1618859), (17, 1237951), (121, 173927), (143, 147169), (187, 112541), (221, 95227), (787, 26741), (1573, 13379), (2057, 10231), (2431, 8657)]