18686031

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{68447}}^1$

素因数の和:68470

約数の個数: 16

約数和(自身を含む): 30664704

約数和(自身を除く): 11978673

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 68447, 205341, 479129, 889811, 1437387, 2669433, 6228677, 18686031]

約数ペア:

[(1, 18686031), (3, 6228677), (7, 2669433), (13, 1437387), (21, 889811), (39, 479129), (91, 205341), (273, 68447)]