21626180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56911}}^1$

素因数の和:56939

約数の個数: 24

約数和(自身を含む): 47806080

約数和(自身を除く): 26179900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56911, 113822, 227644, 284555, 569110, 1081309, 1138220, 2162618, 4325236, 5406545, 10813090, 21626180]

約数ペア:

[(1, 21626180), (2, 10813090), (4, 5406545), (5, 4325236), (10, 2162618), (19, 1138220), (20, 1081309), (38, 569110), (76, 284555), (95, 227644), (190, 113822), (380, 56911)]