20338749

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{607}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 32394240

約数和(自身を除く): 12055491

約数列:

[1, 3, 9, 17, 27, 51, 73, 153, 219, 459, 607, 657, 1241, 1821, 1971, 3723, 5463, 10319, 11169, 16389, 30957, 33507, 44311, 92871, 132933, 278613, 398799, 753287, 1196397, 2259861, 6779583, 20338749]

約数ペア:

[(1, 20338749), (3, 6779583), (9, 2259861), (17, 1196397), (27, 753287), (51, 398799), (73, 278613), (153, 132933), (219, 92871), (459, 44311), (607, 33507), (657, 30957), (1241, 16389), (1821, 11169), (1971, 10319), (3723, 5463)]