28657993

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{6427}}^1$

素因数の和:6461

約数の個数: 16

約数和(自身を含む): 35996800

約数和(自身を除く): 7338807

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 6427, 44989, 83551, 314923, 584857, 2204461, 4093999, 28657993]

約数ペア:

[(1, 28657993), (7, 4093999), (13, 2204461), (49, 584857), (91, 314923), (343, 83551), (637, 44989), (4459, 6427)]