21261800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{15187}}^1$

素因数の和:15210

約数の個数: 48

約数和(自身を含む): 56499360

約数和(自身を除く): 35237560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 15187, 30374, 60748, 75935, 106309, 121496, 151870, 212618, 303740, 379675, 425236, 531545, 607480, 759350, 850472, 1063090, 1518700, 2126180, 2657725, 3037400, 4252360, 5315450, 10630900, 21261800]

約数ペア:

[(1, 21261800), (2, 10630900), (4, 5315450), (5, 4252360), (7, 3037400), (8, 2657725), (10, 2126180), (14, 1518700), (20, 1063090), (25, 850472), (28, 759350), (35, 607480), (40, 531545), (50, 425236), (56, 379675), (70, 303740), (100, 212618), (140, 151870), (175, 121496), (200, 106309), (280, 75935), (350, 60748), (700, 30374), (1400, 15187)]