1646649

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{701}}^1$

素因数の和:742

約数の個数: 20

約数和(自身を含む): 2548260

約数和(自身を除く): 901611

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 701, 783, 2103, 2349, 6309, 18927, 20329, 56781, 60987, 182961, 548883, 1646649]

約数ペア:

[(1, 1646649), (3, 548883), (9, 182961), (27, 60987), (29, 56781), (81, 20329), (87, 18927), (261, 6309), (701, 2349), (783, 2103)]