28889679

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 22203825

約数列:

[1, 3, 7, 13, 21, 23, 39, 43, 69, 91, 107, 129, 161, 273, 299, 301, 321, 483, 559, 749, 897, 903, 989, 1391, 1677, 2093, 2247, 2461, 2967, 3913, 4173, 4601, 6279, 6923, 7383, 9737, 11739, 12857, 13803, 17227, 20769, 29211, 31993, 32207, 38571, 51681, 59813, 89999, 95979, 96621, 105823, 179439, 223951, 269997, 317469, 418691, 671853, 740761, 1256073, 1375699, 2222283, 4127097, 9629893, 28889679]

約数ペア:

[(1, 28889679), (3, 9629893), (7, 4127097), (13, 2222283), (21, 1375699), (23, 1256073), (39, 740761), (43, 671853), (69, 418691), (91, 317469), (107, 269997), (129, 223951), (161, 179439), (273, 105823), (299, 96621), (301, 95979), (321, 89999), (483, 59813), (559, 51681), (749, 38571), (897, 32207), (903, 31993), (989, 29211), (1391, 20769), (1677, 17227), (2093, 13803), (2247, 12857), (2461, 11739), (2967, 9737), (3913, 7383), (4173, 6923), (4601, 6279)]