21154579

素因数分解:

${\mathrm{17}}^1\times {\mathrm{53}}^2\times {\mathrm{443}}^1$

素因数の和:566

約数の個数: 12

約数和(自身を含む): 22881096

約数和(自身を除く): 1726517

約数列:

[1, 17, 53, 443, 901, 2809, 7531, 23479, 47753, 399143, 1244387, 21154579]

約数ペア:

[(1, 21154579), (17, 1244387), (53, 399143), (443, 47753), (901, 23479), (2809, 7531)]