28527759

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 48004320

約数和(自身を除く): 19476561

約数列:

[1, 3, 9, 13, 19, 39, 41, 57, 117, 123, 171, 247, 313, 369, 533, 741, 779, 939, 1599, 2223, 2337, 2817, 4069, 4797, 5947, 7011, 10127, 12207, 12833, 17841, 30381, 36621, 38499, 53523, 77311, 91143, 115497, 166829, 231933, 243827, 500487, 695799, 731481, 1501461, 2194443, 3169751, 9509253, 28527759]

約数ペア:

[(1, 28527759), (3, 9509253), (9, 3169751), (13, 2194443), (19, 1501461), (39, 731481), (41, 695799), (57, 500487), (117, 243827), (123, 231933), (171, 166829), (247, 115497), (313, 91143), (369, 77311), (533, 53523), (741, 38499), (779, 36621), (939, 30381), (1599, 17841), (2223, 12833), (2337, 12207), (2817, 10127), (4069, 7011), (4797, 5947)]