18935554

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{1997}}^1$

素因数の和:2441

約数の個数: 16

約数和(自身を含む): 31072896

約数和(自身を除く): 12137342

約数列:

[1, 2, 11, 22, 431, 862, 1997, 3994, 4741, 9482, 21967, 43934, 860707, 1721414, 9467777, 18935554]

約数ペア:

[(1, 18935554), (2, 9467777), (11, 1721414), (22, 860707), (431, 43934), (862, 21967), (1997, 9482), (3994, 4741)]