21061276

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{5479}}^1$

素因数の和:5545

約数の個数: 18

約数和(自身を含む): 38091480

約数和(自身を除く): 17030204

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 5479, 10958, 21916, 169849, 339698, 679396, 5265319, 10530638, 21061276]

約数ペア:

[(1, 21061276), (2, 10530638), (4, 5265319), (31, 679396), (62, 339698), (124, 169849), (961, 21916), (1922, 10958), (3844, 5479)]