28280791

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:835

約数の個数: 24

約数和(自身を含む): 36443520

約数和(自身を除く): 8162729

約数列:

[1, 7, 11, 49, 71, 77, 497, 539, 739, 781, 3479, 5173, 5467, 8129, 36211, 38269, 52469, 56903, 367283, 398321, 577159, 2570981, 4040113, 28280791]

約数ペア:

[(1, 28280791), (7, 4040113), (11, 2570981), (49, 577159), (71, 398321), (77, 367283), (497, 56903), (539, 52469), (739, 38269), (781, 36211), (3479, 8129), (5173, 5467)]