20125521

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4649}}^1$

素因数の和:4705

約数の個数: 24

約数和(自身を含む): 32159400

約数和(自身を除く): 12033879

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 1443, 4329, 4649, 13947, 41841, 60437, 172013, 181311, 516039, 543933, 1548117, 2236169, 6708507, 20125521]

約数ペア:

[(1, 20125521), (3, 6708507), (9, 2236169), (13, 1548117), (37, 543933), (39, 516039), (111, 181311), (117, 172013), (333, 60437), (481, 41841), (1443, 13947), (4329, 4649)]