20789439

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 11558721

約数列:

[1, 3, 11, 19, 33, 57, 71, 209, 213, 467, 627, 781, 1349, 1401, 2343, 4047, 5137, 8873, 14839, 15411, 26619, 33157, 44517, 97603, 99471, 292809, 364727, 629983, 1094181, 1889949, 6929813, 20789439]

約数ペア:

[(1, 20789439), (3, 6929813), (11, 1889949), (19, 1094181), (33, 629983), (57, 364727), (71, 292809), (209, 99471), (213, 97603), (467, 44517), (627, 33157), (781, 26619), (1349, 15411), (1401, 14839), (2343, 8873), (4047, 5137)]