56721687

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 85764096

約数和(自身を除く): 29042409

約数列:

[1, 3, 11, 33, 43, 71, 129, 213, 473, 563, 781, 1419, 1689, 2343, 3053, 6193, 9159, 18579, 24209, 33583, 39973, 72627, 100749, 119919, 266299, 439703, 798897, 1319109, 1718839, 5156517, 18907229, 56721687]

約数ペア:

[(1, 56721687), (3, 18907229), (11, 5156517), (33, 1718839), (43, 1319109), (71, 798897), (129, 439703), (213, 266299), (473, 119919), (563, 100749), (781, 72627), (1419, 39973), (1689, 33583), (2343, 24209), (3053, 18579), (6193, 9159)]