538201665

素因数分解:

$3^4\times 5^1\times {\mathrm{1328893}}^1$

素因数の和:1328910

約数の個数: 20

約数和(自身を含む): 964777044

約数和(自身を除く): 426575379

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1328893, 3986679, 6644465, 11960037, 19933395, 35880111, 59800185, 107640333, 179400555, 538201665]

約数ペア:

[(1, 538201665), (3, 179400555), (5, 107640333), (9, 59800185), (15, 35880111), (27, 19933395), (45, 11960037), (81, 6644465), (135, 3986679), (405, 1328893)]