20215836

素因数分解:

$2^2\times 3^2\times {\mathrm{561551}}^1$

素因数の和:561561

約数の個数: 18

約数和(自身を含む): 51101232

約数和(自身を除く): 30885396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 561551, 1123102, 1684653, 2246204, 3369306, 5053959, 6738612, 10107918, 20215836]

約数ペア:

[(1, 20215836), (2, 10107918), (3, 6738612), (4, 5053959), (6, 3369306), (9, 2246204), (12, 1684653), (18, 1123102), (36, 561551)]