20185155

素因数分解:

$3^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{727}}^1$

素因数の和:1355

約数の個数: 24

約数和(自身を含む): 35092512

約数和(自身を除く): 14907357

約数列:

[1, 3, 5, 9, 15, 45, 617, 727, 1851, 2181, 3085, 3635, 5553, 6543, 9255, 10905, 27765, 32715, 448559, 1345677, 2242795, 4037031, 6728385, 20185155]

約数ペア:

[(1, 20185155), (3, 6728385), (5, 4037031), (9, 2242795), (15, 1345677), (45, 448559), (617, 32715), (727, 27765), (1851, 10905), (2181, 9255), (3085, 6543), (3635, 5553)]