20012715

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10847}}^1$

素因数の和:10899

約数の個数: 24

約数和(自身を含む): 35538048

約数和(自身を除く): 15525333

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 10847, 32541, 54235, 97623, 162705, 444727, 488115, 1334181, 2223635, 4002543, 6670905, 20012715]

約数ペア:

[(1, 20012715), (3, 6670905), (5, 4002543), (9, 2223635), (15, 1334181), (41, 488115), (45, 444727), (123, 162705), (205, 97623), (369, 54235), (615, 32541), (1845, 10847)]