21461260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56477}}^1$

素因数の和:56505

約数の個数: 24

約数和(自身を含む): 47441520

約数和(自身を除く): 25980260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56477, 112954, 225908, 282385, 564770, 1073063, 1129540, 2146126, 4292252, 5365315, 10730630, 21461260]

約数ペア:

[(1, 21461260), (2, 10730630), (4, 5365315), (5, 4292252), (10, 2146126), (19, 1129540), (20, 1073063), (38, 564770), (76, 282385), (95, 225908), (190, 112954), (380, 56477)]