28398293

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 39398400

約数和(自身を除く): 11000107

約数列:

[1, 7, 11, 19, 47, 49, 59, 77, 133, 209, 329, 413, 517, 539, 649, 893, 931, 1121, 1463, 2303, 2773, 2891, 3619, 4543, 6251, 7847, 9823, 10241, 12331, 19411, 25333, 30503, 31801, 43757, 52687, 54929, 68761, 86317, 135877, 213521, 368809, 481327, 579557, 604219, 1494647, 2581663, 4056899, 28398293]

約数ペア:

[(1, 28398293), (7, 4056899), (11, 2581663), (19, 1494647), (47, 604219), (49, 579557), (59, 481327), (77, 368809), (133, 213521), (209, 135877), (329, 86317), (413, 68761), (517, 54929), (539, 52687), (649, 43757), (893, 31801), (931, 30503), (1121, 25333), (1463, 19411), (2303, 12331), (2773, 10241), (2891, 9823), (3619, 7847), (4543, 6251)]