21067948

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12941}}^1$

素因数の和:12993

約数の個数: 24

約数和(自身を含む): 41310864

約数和(自身を除く): 20242916

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12941, 25882, 51764, 142351, 284702, 478817, 569404, 957634, 1915268, 5266987, 10533974, 21067948]

約数ペア:

[(1, 21067948), (2, 10533974), (4, 5266987), (11, 1915268), (22, 957634), (37, 569404), (44, 478817), (74, 284702), (148, 142351), (407, 51764), (814, 25882), (1628, 12941)]