21427400

素因数分解:

$2^3\times 5^2\times {\mathrm{107137}}^1$

素因数の和:107153

約数の個数: 24

約数和(自身を含む): 49819170

約数和(自身を除く): 28391770

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 107137, 214274, 428548, 535685, 857096, 1071370, 2142740, 2678425, 4285480, 5356850, 10713700, 21427400]

約数ペア:

[(1, 21427400), (2, 10713700), (4, 5356850), (5, 4285480), (8, 2678425), (10, 2142740), (20, 1071370), (25, 857096), (40, 535685), (50, 428548), (100, 214274), (200, 107137)]