21199600

素因数分解:

$2^4\times 5^2\times {\mathrm{52999}}^1$

素因数の和:53017

約数の個数: 30

約数和(自身を含む): 50933000

約数和(自身を除く): 29733400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52999, 105998, 211996, 264995, 423992, 529990, 847984, 1059980, 1324975, 2119960, 2649950, 4239920, 5299900, 10599800, 21199600]

約数ペア:

[(1, 21199600), (2, 10599800), (4, 5299900), (5, 4239920), (8, 2649950), (10, 2119960), (16, 1324975), (20, 1059980), (25, 847984), (40, 529990), (50, 423992), (80, 264995), (100, 211996), (200, 105998), (400, 52999)]