21049660

素因数分解:

$2^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2777}}^1$

素因数の和:3165

約数の個数: 24

約数和(自身を含む): 44336880

約数和(自身を除く): 23287220

約数列:

[1, 2, 4, 5, 10, 20, 379, 758, 1516, 1895, 2777, 3790, 5554, 7580, 11108, 13885, 27770, 55540, 1052483, 2104966, 4209932, 5262415, 10524830, 21049660]

約数ペア:

[(1, 21049660), (2, 10524830), (4, 5262415), (5, 4209932), (10, 2104966), (20, 1052483), (379, 55540), (758, 27770), (1516, 13885), (1895, 11108), (2777, 7580), (3790, 5554)]