21410740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82349}}^1$

素因数の和:82371

約数の個数: 24

約数和(自身を含む): 48421800

約数和(自身を除く): 27011060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 82349, 164698, 329396, 411745, 823490, 1070537, 1646980, 2141074, 4282148, 5352685, 10705370, 21410740]

約数ペア:

[(1, 21410740), (2, 10705370), (4, 5352685), (5, 4282148), (10, 2141074), (13, 1646980), (20, 1070537), (26, 823490), (52, 411745), (65, 329396), (130, 164698), (260, 82349)]