21011774

素因数分解:

$2^1\times 7^1\times {\mathrm{701}}^1\times {\mathrm{2141}}^1$

素因数の和:2851

約数の個数: 16

約数和(自身を含む): 36088416

約数和(自身を除く): 15076642

約数列:

[1, 2, 7, 14, 701, 1402, 2141, 4282, 4907, 9814, 14987, 29974, 1500841, 3001682, 10505887, 21011774]

約数ペア:

[(1, 21011774), (2, 10505887), (7, 3001682), (14, 1500841), (701, 29974), (1402, 14987), (2141, 9814), (4282, 4907)]