21049732

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{478403}}^1$

素因数の和:478418

約数の個数: 12

約数和(自身を含む): 40185936

約数和(自身を除く): 19136204

約数列:

[1, 2, 4, 11, 22, 44, 478403, 956806, 1913612, 5262433, 10524866, 21049732]

約数ペア:

[(1, 21049732), (2, 10524866), (4, 5262433), (11, 1913612), (22, 956806), (44, 478403)]