51991389

素因数分解:

$3^4\times {\mathrm{17}}^2\times {\mathrm{2221}}^1$

素因数の和:2267

約数の個数: 30

約数和(自身を含む): 82540634

約数和(自身を除く): 30549245

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 289, 459, 867, 1377, 2221, 2601, 6663, 7803, 19989, 23409, 37757, 59967, 113271, 179901, 339813, 641869, 1019439, 1925607, 3058317, 5776821, 17330463, 51991389]

約数ペア:

[(1, 51991389), (3, 17330463), (9, 5776821), (17, 3058317), (27, 1925607), (51, 1019439), (81, 641869), (153, 339813), (289, 179901), (459, 113271), (867, 59967), (1377, 37757), (2221, 23409), (2601, 19989), (6663, 7803)]