18907213

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{6581}}^1$

素因数の和:6624

約数の個数: 12

約数和(自身を含む): 21681108

約数和(自身を除く): 2773895

約数列:

[1, 13, 17, 169, 221, 2873, 6581, 85553, 111877, 1112189, 1454401, 18907213]

約数ペア:

[(1, 18907213), (13, 1454401), (17, 1112189), (169, 111877), (221, 85553), (2873, 6581)]