21138400

素因数分解:

$2^5\times 5^2\times {\mathrm{26423}}^1$

素因数の和:26443

約数の個数: 36

約数和(自身を含む): 51606072

約数和(自身を除く): 30467672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26423, 52846, 105692, 132115, 211384, 264230, 422768, 528460, 660575, 845536, 1056920, 1321150, 2113840, 2642300, 4227680, 5284600, 10569200, 21138400]

約数ペア:

[(1, 21138400), (2, 10569200), (4, 5284600), (5, 4227680), (8, 2642300), (10, 2113840), (16, 1321150), (20, 1056920), (25, 845536), (32, 660575), (40, 528460), (50, 422768), (80, 264230), (100, 211384), (160, 132115), (200, 105692), (400, 52846), (800, 26423)]