21125750

素因数分解:

$2^1\times 5^3\times {\mathrm{84503}}^1$

素因数の和:84520

約数の個数: 16

約数和(自身を含む): 39547872

約数和(自身を除く): 18422122

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 84503, 169006, 422515, 845030, 2112575, 4225150, 10562875, 21125750]

約数ペア:

[(1, 21125750), (2, 10562875), (5, 4225150), (10, 2112575), (25, 845030), (50, 422515), (125, 169006), (250, 84503)]