20077211

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{193}}^2$

素因数の和:411

約数の個数: 18

約数和(自身を含む): 25611012

約数和(自身を除く): 5533801

約数列:

[1, 7, 11, 49, 77, 193, 539, 1351, 2123, 9457, 14861, 37249, 104027, 260743, 409739, 1825201, 2868173, 20077211]

約数ペア:

[(1, 20077211), (7, 2868173), (11, 1825201), (49, 409739), (77, 260743), (193, 104027), (539, 37249), (1351, 14861), (2123, 9457)]