28312207

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 37785600

約数和(自身を除く): 9473393

約数列:

[1, 7, 11, 29, 31, 77, 203, 217, 319, 341, 409, 899, 2233, 2387, 2863, 4499, 6293, 9889, 11861, 12679, 31493, 69223, 83027, 88753, 130471, 139469, 367691, 913297, 976283, 2573837, 4044601, 28312207]

約数ペア:

[(1, 28312207), (7, 4044601), (11, 2573837), (29, 976283), (31, 913297), (77, 367691), (203, 139469), (217, 130471), (319, 88753), (341, 83027), (409, 69223), (899, 31493), (2233, 12679), (2387, 11861), (2863, 9889), (4499, 6293)]