20012859

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{739}}^1$

素因数の和:824

約数の個数: 32

約数和(自身を含む): 31968000

約数和(自身を除く): 11955141

約数列:

[1, 3, 9, 17, 27, 51, 59, 153, 177, 459, 531, 739, 1003, 1593, 2217, 3009, 6651, 9027, 12563, 19953, 27081, 37689, 43601, 113067, 130803, 339201, 392409, 741217, 1177227, 2223651, 6670953, 20012859]

約数ペア:

[(1, 20012859), (3, 6670953), (9, 2223651), (17, 1177227), (27, 741217), (51, 392409), (59, 339201), (153, 130803), (177, 113067), (459, 43601), (531, 37689), (739, 27081), (1003, 19953), (1593, 12563), (2217, 9027), (3009, 6651)]