20011455

素因数分解:

$3^4\times 5^1\times {\mathrm{49411}}^1$

素因数の和:49428

約数の個数: 20

約数和(自身を含む): 35873112

約数和(自身を除く): 15861657

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49411, 148233, 247055, 444699, 741165, 1334097, 2223495, 4002291, 6670485, 20011455]

約数ペア:

[(1, 20011455), (3, 6670485), (5, 4002291), (9, 2223495), (15, 1334097), (27, 741165), (45, 444699), (81, 247055), (135, 148233), (405, 49411)]