20982465

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1129}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 42307200

約数和(自身を除く): 21324735

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 59, 63, 105, 177, 295, 315, 413, 531, 885, 1129, 1239, 2065, 2655, 3387, 3717, 5645, 6195, 7903, 10161, 16935, 18585, 23709, 39515, 50805, 66611, 71127, 118545, 199833, 333055, 355635, 466277, 599499, 999165, 1398831, 2331385, 2997495, 4196493, 6994155, 20982465]

約数ペア:

[(1, 20982465), (3, 6994155), (5, 4196493), (7, 2997495), (9, 2331385), (15, 1398831), (21, 999165), (35, 599499), (45, 466277), (59, 355635), (63, 333055), (105, 199833), (177, 118545), (295, 71127), (315, 66611), (413, 50805), (531, 39515), (885, 23709), (1129, 18585), (1239, 16935), (2065, 10161), (2655, 7903), (3387, 6195), (3717, 5645)]