21670868

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{911}}^1$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 40091520

約数和(自身を除く): 18420652

約数列:

[1, 2, 4, 19, 38, 76, 313, 626, 911, 1252, 1822, 3644, 5947, 11894, 17309, 23788, 34618, 69236, 285143, 570286, 1140572, 5417717, 10835434, 21670868]

約数ペア:

[(1, 21670868), (2, 10835434), (4, 5417717), (19, 1140572), (38, 570286), (76, 285143), (313, 69236), (626, 34618), (911, 23788), (1252, 17309), (1822, 11894), (3644, 5947)]