28657072

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{17389}}^1$

素因数の和:17500

約数の個数: 20

約数和(自身を含む): 56065360

約数和(自身を除く): 27408288

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 17389, 34778, 69556, 139112, 278224, 1791067, 3582134, 7164268, 14328536, 28657072]

約数ペア:

[(1, 28657072), (2, 14328536), (4, 7164268), (8, 3582134), (16, 1791067), (103, 278224), (206, 139112), (412, 69556), (824, 34778), (1648, 17389)]