27780057

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2087}}^1$

素因数の和:2142

約数の個数: 32

約数和(自身を含む): 45100800

約数和(自身を除く): 17320743

約数列:

[1, 3, 9, 17, 27, 29, 51, 87, 153, 261, 459, 493, 783, 1479, 2087, 4437, 6261, 13311, 18783, 35479, 56349, 60523, 106437, 181569, 319311, 544707, 957933, 1028891, 1634121, 3086673, 9260019, 27780057]

約数ペア:

[(1, 27780057), (3, 9260019), (9, 3086673), (17, 1634121), (27, 1028891), (29, 957933), (51, 544707), (87, 319311), (153, 181569), (261, 106437), (459, 60523), (493, 56349), (783, 35479), (1479, 18783), (2087, 13311), (4437, 6261)]