18973042

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{78401}}^1$

素因数の和:78425

約数の個数: 12

約数和(自身を含む): 31282398

約数和(自身を除く): 12309356

約数列:

[1, 2, 11, 22, 121, 242, 78401, 156802, 862411, 1724822, 9486521, 18973042]

約数ペア:

[(1, 18973042), (2, 9486521), (11, 1724822), (22, 862411), (121, 156802), (242, 78401)]