20985104

素因数分解:

$2^4\times 7^1\times {\mathrm{187367}}^1$

素因数の和:187382

約数の個数: 20

約数和(自身を含む): 46467264

約数和(自身を除く): 25482160

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 187367, 374734, 749468, 1311569, 1498936, 2623138, 2997872, 5246276, 10492552, 20985104]

約数ペア:

[(1, 20985104), (2, 10492552), (4, 5246276), (7, 2997872), (8, 2623138), (14, 1498936), (16, 1311569), (28, 749468), (56, 374734), (112, 187367)]