20650188

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6967}}^1$

素因数の和:7006

約数の個数: 48

約数和(自身を含む): 54629120

約数和(自身を除く): 33978932

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 6967, 13934, 20901, 27868, 41802, 83604, 90571, 132373, 181142, 264746, 271713, 362284, 397119, 529492, 543426, 794238, 1086852, 1588476, 1720849, 3441698, 5162547, 6883396, 10325094, 20650188]

約数ペア:

[(1, 20650188), (2, 10325094), (3, 6883396), (4, 5162547), (6, 3441698), (12, 1720849), (13, 1588476), (19, 1086852), (26, 794238), (38, 543426), (39, 529492), (52, 397119), (57, 362284), (76, 271713), (78, 264746), (114, 181142), (156, 132373), (228, 90571), (247, 83604), (494, 41802), (741, 27868), (988, 20901), (1482, 13934), (2964, 6967)]