21182960

素因数分解:

$2^4\times 5^1\times {\mathrm{264787}}^1$

素因数の和:264800

約数の個数: 20

約数和(自身を含む): 49250568

約数和(自身を除く): 28067608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 264787, 529574, 1059148, 1323935, 2118296, 2647870, 4236592, 5295740, 10591480, 21182960]

約数ペア:

[(1, 21182960), (2, 10591480), (4, 5295740), (5, 4236592), (8, 2647870), (10, 2118296), (16, 1323935), (20, 1059148), (40, 529574), (80, 264787)]