20777471

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 26019840

約数和(自身を除く): 5242369

約数列:

[1, 11, 13, 31, 43, 109, 143, 341, 403, 473, 559, 1199, 1333, 1417, 3379, 4433, 4687, 6149, 14663, 15587, 17329, 37169, 43927, 51557, 60931, 145297, 190619, 483197, 670241, 1598267, 1888861, 20777471]

約数ペア:

[(1, 20777471), (11, 1888861), (13, 1598267), (31, 670241), (43, 483197), (109, 190619), (143, 145297), (341, 60931), (403, 51557), (473, 43927), (559, 37169), (1199, 17329), (1333, 15587), (1417, 14663), (3379, 6149), (4433, 4687)]