18807855983

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1\times {\mathrm{2851}}^1$

素因数の和:3327

約数の個数: 32

約数和(自身を含む): 22839728640

約数和(自身を除く): 4031872657

約数列:

[1, 7, 19, 133, 193, 257, 1351, 1799, 2851, 3667, 4883, 19957, 25669, 34181, 49601, 54169, 347207, 379183, 550243, 732707, 942419, 3851701, 5128949, 6596933, 10454617, 13921433, 73182319, 97450031, 141412451, 989887157, 2686836569, 18807855983]

約数ペア:

[(1, 18807855983), (7, 2686836569), (19, 989887157), (133, 141412451), (193, 97450031), (257, 73182319), (1351, 13921433), (1799, 10454617), (2851, 6596933), (3667, 5128949), (4883, 3851701), (19957, 942419), (25669, 732707), (34181, 550243), (49601, 379183), (54169, 347207)]