920601981

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{605261}}^1$

素因数の和:605293

約数の個数: 18

約数和(自身を含む): 1439918298

約数和(自身を除く): 519316317

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 605261, 1815783, 5447349, 7868393, 23605179, 70815537, 102289109, 306867327, 920601981]

約数ペア:

[(1, 920601981), (3, 306867327), (9, 102289109), (13, 70815537), (39, 23605179), (117, 7868393), (169, 5447349), (507, 1815783), (1521, 605261)]