21000547640

素因数分解:

$2^3\times 5^1\times {\mathrm{525013691}}^1$

素因数の和:525013702

約数の個数: 16

約数和(自身を含む): 47251232280

約数和(自身を除く): 26250684640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 525013691, 1050027382, 2100054764, 2625068455, 4200109528, 5250136910, 10500273820, 21000547640]

約数ペア:

[(1, 21000547640), (2, 10500273820), (4, 5250136910), (5, 4200109528), (8, 2625068455), (10, 2100054764), (20, 1050027382), (40, 525013691)]