21813850

素因数分解:

$2^1\times 5^2\times {\mathrm{293}}^1\times {\mathrm{1489}}^1$

素因数の和:1794

約数の個数: 24

約数和(自身を含む): 40739580

約数和(自身を除く): 18925730

約数列:

[1, 2, 5, 10, 25, 50, 293, 586, 1465, 1489, 2930, 2978, 7325, 7445, 14650, 14890, 37225, 74450, 436277, 872554, 2181385, 4362770, 10906925, 21813850]

約数ペア:

[(1, 21813850), (2, 10906925), (5, 4362770), (10, 2181385), (25, 872554), (50, 436277), (293, 74450), (586, 37225), (1465, 14890), (1489, 14650), (2930, 7445), (2978, 7325)]