1247389

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1$

素因数の和:109

約数の個数: 18

約数和(自身を含む): 1509018

約数和(自身を除く): 261629

約数列:

[1, 11, 13, 61, 121, 143, 169, 671, 793, 1573, 1859, 7381, 8723, 10309, 20449, 95953, 113399, 1247389]

約数ペア:

[(1, 1247389), (11, 113399), (13, 95953), (61, 20449), (121, 10309), (143, 8723), (169, 7381), (671, 1859), (793, 1573)]