21842500

素因数分解:

$2^2\times 5^4\times {\mathrm{8737}}^1$

素因数の和:8761

約数の個数: 30

約数和(自身を含む): 47770646

約数和(自身を除く): 25928146

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 8737, 17474, 34948, 43685, 87370, 174740, 218425, 436850, 873700, 1092125, 2184250, 4368500, 5460625, 10921250, 21842500]

約数ペア:

[(1, 21842500), (2, 10921250), (4, 5460625), (5, 4368500), (10, 2184250), (20, 1092125), (25, 873700), (50, 436850), (100, 218425), (125, 174740), (250, 87370), (500, 43685), (625, 34948), (1250, 17474), (2500, 8737)]