21000307100

素因数分解:

$2^2\times 5^2\times {\mathrm{210003071}}^1$

素因数の和:210003085

約数の個数: 18

約数和(自身を含む): 45570666624

約数和(自身を除く): 24570359524

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 210003071, 420006142, 840012284, 1050015355, 2100030710, 4200061420, 5250076775, 10500153550, 21000307100]

約数ペア:

[(1, 21000307100), (2, 10500153550), (4, 5250076775), (5, 4200061420), (10, 2100030710), (20, 1050015355), (25, 840012284), (50, 420006142), (100, 210003071)]