20565207945

素因数分解:

$3^2\times 5^1\times {\mathrm{7127}}^1\times {\mathrm{64123}}^1$

素因数の和:71261

約数の個数: 24

約数和(自身を含む): 35651918016

約数和(自身を除く): 15086710071

約数列:

[1, 3, 5, 9, 15, 45, 7127, 21381, 35635, 64123, 64143, 106905, 192369, 320615, 320715, 577107, 961845, 2885535, 457004621, 1371013863, 2285023105, 4113041589, 6855069315, 20565207945]

約数ペア:

[(1, 20565207945), (3, 6855069315), (5, 4113041589), (9, 2285023105), (15, 1371013863), (45, 457004621), (7127, 2885535), (21381, 961845), (35635, 577107), (64123, 320715), (64143, 320615), (106905, 192369)]