21088550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:785

約数の個数: 48

約数和(自身を含む): 45398880

約数和(自身を除く): 24310330

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 89, 175, 178, 350, 445, 623, 677, 890, 1246, 1354, 2225, 3115, 3385, 4450, 4739, 6230, 6770, 9478, 15575, 16925, 23695, 31150, 33850, 47390, 60253, 118475, 120506, 236950, 301265, 421771, 602530, 843542, 1506325, 2108855, 3012650, 4217710, 10544275, 21088550]

約数ペア:

[(1, 21088550), (2, 10544275), (5, 4217710), (7, 3012650), (10, 2108855), (14, 1506325), (25, 843542), (35, 602530), (50, 421771), (70, 301265), (89, 236950), (175, 120506), (178, 118475), (350, 60253), (445, 47390), (623, 33850), (677, 31150), (890, 23695), (1246, 16925), (1354, 15575), (2225, 9478), (3115, 6770), (3385, 6230), (4450, 4739)]