20878662015

素因数分解:

$3^2\times 5^1\times {\mathrm{463970267}}^1$

素因数の和:463970278

約数の個数: 12

約数和(自身を含む): 36189680904

約数和(自身を除く): 15311018889

約数列:

[1, 3, 5, 9, 15, 45, 463970267, 1391910801, 2319851335, 4175732403, 6959554005, 20878662015]

約数ペア:

[(1, 20878662015), (3, 6959554005), (5, 4175732403), (9, 2319851335), (15, 1391910801), (45, 463970267)]