21571400

素因数分解:

$2^3\times 5^2\times {\mathrm{107857}}^1$

素因数の和:107873

約数の個数: 24

約数和(自身を含む): 50153970

約数和(自身を除く): 28582570

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 107857, 215714, 431428, 539285, 862856, 1078570, 2157140, 2696425, 4314280, 5392850, 10785700, 21571400]

約数ペア:

[(1, 21571400), (2, 10785700), (4, 5392850), (5, 4314280), (8, 2696425), (10, 2157140), (20, 1078570), (25, 862856), (40, 539285), (50, 431428), (100, 215714), (200, 107857)]