21009593

素因数分解:

${\mathrm{11}}^2\times {\mathrm{401}}^1\times {\mathrm{433}}^1$

素因数の和:856

約数の個数: 12

約数和(自身を含む): 23204244

約数和(自身を除く): 2194651

約数列:

[1, 11, 121, 401, 433, 4411, 4763, 48521, 52393, 173633, 1909963, 21009593]

約数ペア:

[(1, 21009593), (11, 1909963), (121, 173633), (401, 52393), (433, 48521), (4411, 4763)]