21103511

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8681}}^1$

素因数の和:8722

約数の個数: 16

約数和(自身を含む): 26254368

約数和(自身を除く): 5150857

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 8681, 95491, 112853, 147577, 1241383, 1623347, 1918501, 21103511]

約数ペア:

[(1, 21103511), (11, 1918501), (13, 1623347), (17, 1241383), (143, 147577), (187, 112853), (221, 95491), (2431, 8681)]