21042488

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{25537}}^1$

素因数の和:25646

約数の個数: 16

約数和(自身を含む): 39839280

約数和(自身を除く): 18796792

約数列:

[1, 2, 4, 8, 103, 206, 412, 824, 25537, 51074, 102148, 204296, 2630311, 5260622, 10521244, 21042488]

約数ペア:

[(1, 21042488), (2, 10521244), (4, 5260622), (8, 2630311), (103, 204296), (206, 102148), (412, 51074), (824, 25537)]