27820143

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 46702656

約数和(自身を除く): 18882513

約数列:

[1, 3, 9, 13, 17, 39, 51, 71, 117, 153, 197, 213, 221, 591, 639, 663, 923, 1207, 1773, 1989, 2561, 2769, 3349, 3621, 7683, 8307, 10047, 10863, 13987, 15691, 23049, 30141, 41961, 43537, 47073, 125883, 130611, 141219, 181831, 237779, 391833, 545493, 713337, 1636479, 2140011, 3091127, 9273381, 27820143]

約数ペア:

[(1, 27820143), (3, 9273381), (9, 3091127), (13, 2140011), (17, 1636479), (39, 713337), (51, 545493), (71, 391833), (117, 237779), (153, 181831), (197, 141219), (213, 130611), (221, 125883), (591, 47073), (639, 43537), (663, 41961), (923, 30141), (1207, 23049), (1773, 15691), (1989, 13987), (2561, 10863), (2769, 10047), (3349, 8307), (3621, 7683)]