20887286

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{36389}}^1$

素因数の和:36439

約数の個数: 16

約数和(自身を含む): 36681120

約数和(自身を除く): 15793834

約数列:

[1, 2, 7, 14, 41, 82, 287, 574, 36389, 72778, 254723, 509446, 1491949, 2983898, 10443643, 20887286]

約数ペア:

[(1, 20887286), (2, 10443643), (7, 2983898), (14, 1491949), (41, 509446), (82, 254723), (287, 72778), (574, 36389)]