16966665

素因数分解:

$3^4\times 5^1\times {\mathrm{41893}}^1$

素因数の和:41910

約数の個数: 20

約数和(自身を含む): 30415044

約数和(自身を除く): 13448379

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 41893, 125679, 209465, 377037, 628395, 1131111, 1885185, 3393333, 5655555, 16966665]

約数ペア:

[(1, 16966665), (3, 5655555), (5, 3393333), (9, 1885185), (15, 1131111), (27, 628395), (45, 377037), (81, 209465), (135, 125679), (405, 41893)]