21839800

素因数分解:

$2^3\times 5^2\times {\mathrm{109199}}^1$

素因数の和:109215

約数の個数: 24

約数和(自身を含む): 50778000

約数和(自身を除く): 28938200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 109199, 218398, 436796, 545995, 873592, 1091990, 2183980, 2729975, 4367960, 5459950, 10919900, 21839800]

約数ペア:

[(1, 21839800), (2, 10919900), (4, 5459950), (5, 4367960), (8, 2729975), (10, 2183980), (20, 1091990), (25, 873592), (40, 545995), (50, 436796), (100, 218398), (200, 109199)]