20015985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{121309}}^1$

素因数の和:121328

約数の個数: 16

約数和(自身を含む): 34937280

約数和(自身を除く): 14921295

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 121309, 363927, 606545, 1334399, 1819635, 4003197, 6671995, 20015985]

約数ペア:

[(1, 20015985), (3, 6671995), (5, 4003197), (11, 1819635), (15, 1334399), (33, 606545), (55, 363927), (165, 121309)]