20309212

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{283}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 44658432

約数和(自身を除く): 24349220

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 233, 283, 308, 466, 566, 932, 1132, 1631, 1981, 2563, 3113, 3262, 3962, 5126, 6226, 6524, 7924, 10252, 12452, 17941, 21791, 35882, 43582, 65939, 71764, 87164, 131878, 263756, 461573, 725329, 923146, 1450658, 1846292, 2901316, 5077303, 10154606, 20309212]

約数ペア:

[(1, 20309212), (2, 10154606), (4, 5077303), (7, 2901316), (11, 1846292), (14, 1450658), (22, 923146), (28, 725329), (44, 461573), (77, 263756), (154, 131878), (233, 87164), (283, 71764), (308, 65939), (466, 43582), (566, 35882), (932, 21791), (1132, 17941), (1631, 12452), (1981, 10252), (2563, 7924), (3113, 6524), (3262, 6226), (3962, 5126)]