21855656

素因数分解:

$2^3\times {\mathrm{157}}^1\times {\mathrm{17401}}^1$

素因数の和:17564

約数の個数: 16

約数和(自身を含む): 41242740

約数和(自身を除く): 19387084

約数列:

[1, 2, 4, 8, 157, 314, 628, 1256, 17401, 34802, 69604, 139208, 2731957, 5463914, 10927828, 21855656]

約数ペア:

[(1, 21855656), (2, 10927828), (4, 5463914), (8, 2731957), (157, 139208), (314, 69604), (628, 34802), (1256, 17401)]