21241385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3041}}^1$

素因数の和:3184

約数の個数: 16

約数和(自身を含む): 28035072

約数和(自身を除く): 6793687

約数列:

[1, 5, 11, 55, 127, 635, 1397, 3041, 6985, 15205, 33451, 167255, 386207, 1931035, 4248277, 21241385]

約数ペア:

[(1, 21241385), (5, 4248277), (11, 1931035), (55, 386207), (127, 167255), (635, 33451), (1397, 15205), (3041, 6985)]