20003679

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:301

約数の個数: 40

約数和(自身を含む): 32234400

約数和(自身を除く): 12230721

約数列:

[1, 3, 9, 17, 27, 51, 73, 81, 153, 199, 219, 459, 597, 657, 1241, 1377, 1791, 1971, 3383, 3723, 5373, 5913, 10149, 11169, 14527, 16119, 30447, 33507, 43581, 91341, 100521, 130743, 246959, 274023, 392229, 740877, 1176687, 2222631, 6667893, 20003679]

約数ペア:

[(1, 20003679), (3, 6667893), (9, 2222631), (17, 1176687), (27, 740877), (51, 392229), (73, 274023), (81, 246959), (153, 130743), (199, 100521), (219, 91341), (459, 43581), (597, 33507), (657, 30447), (1241, 16119), (1377, 14527), (1791, 11169), (1971, 10149), (3383, 5913), (3723, 5373)]