20290995

素因数分解:

$3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1871}}^1$

素因数の和:2123

約数の個数: 24

約数和(自身を含む): 35335872

約数和(自身を除く): 15044877

約数列:

[1, 3, 5, 9, 15, 45, 241, 723, 1205, 1871, 2169, 3615, 5613, 9355, 10845, 16839, 28065, 84195, 450911, 1352733, 2254555, 4058199, 6763665, 20290995]

約数ペア:

[(1, 20290995), (3, 6763665), (5, 4058199), (9, 2254555), (15, 1352733), (45, 450911), (241, 84195), (723, 28065), (1205, 16839), (1871, 10845), (2169, 9355), (3615, 5613)]