27771939

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:113

約数の個数: 54

約数和(自身を含む): 47246940

約数和(自身を除く): 19475001

約数列:

[1, 3, 9, 13, 19, 31, 39, 57, 93, 117, 169, 171, 247, 279, 403, 507, 589, 741, 961, 1209, 1521, 1767, 2223, 2883, 3211, 3627, 5239, 5301, 7657, 8649, 9633, 12493, 15717, 18259, 22971, 28899, 37479, 47151, 54777, 68913, 99541, 112437, 162409, 164331, 237367, 298623, 487227, 712101, 895869, 1461681, 2136303, 3085771, 9257313, 27771939]

約数ペア:

[(1, 27771939), (3, 9257313), (9, 3085771), (13, 2136303), (19, 1461681), (31, 895869), (39, 712101), (57, 487227), (93, 298623), (117, 237367), (169, 164331), (171, 162409), (247, 112437), (279, 99541), (403, 68913), (507, 54777), (589, 47151), (741, 37479), (961, 28899), (1209, 22971), (1521, 18259), (1767, 15717), (2223, 12493), (2883, 9633), (3211, 8649), (3627, 7657), (5239, 5301)]