16997827

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7121}}^1$

素因数の和:7170

約数の個数: 16

約数和(自身を含む): 21878784

約数和(自身を除く): 4880957

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 7121, 49847, 78331, 220751, 548317, 1545257, 2428261, 16997827]

約数ペア:

[(1, 16997827), (7, 2428261), (11, 1545257), (31, 548317), (77, 220751), (217, 78331), (341, 49847), (2387, 7121)]