18680909

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{617}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 21491568

約数和(自身を除く): 2810659

約数列:

[1, 13, 17, 137, 221, 617, 1781, 2329, 8021, 10489, 30277, 84529, 136357, 1098877, 1436993, 18680909]

約数ペア:

[(1, 18680909), (13, 1436993), (17, 1098877), (137, 136357), (221, 84529), (617, 30277), (1781, 10489), (2329, 8021)]