20544381

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 37981440

約数和(自身を除く): 17437059

約数列:

[1, 3, 9, 11, 13, 17, 27, 33, 39, 51, 99, 117, 143, 153, 187, 221, 297, 313, 351, 429, 459, 561, 663, 939, 1287, 1683, 1989, 2431, 2817, 3443, 3861, 4069, 5049, 5321, 5967, 7293, 8451, 10329, 12207, 15963, 21879, 30987, 36621, 44759, 47889, 58531, 65637, 69173, 92961, 109863, 134277, 143667, 175593, 207519, 402831, 526779, 622557, 760903, 1208493, 1580337, 1867671, 2282709, 6848127, 20544381]

約数ペア:

[(1, 20544381), (3, 6848127), (9, 2282709), (11, 1867671), (13, 1580337), (17, 1208493), (27, 760903), (33, 622557), (39, 526779), (51, 402831), (99, 207519), (117, 175593), (143, 143667), (153, 134277), (187, 109863), (221, 92961), (297, 69173), (313, 65637), (351, 58531), (429, 47889), (459, 44759), (561, 36621), (663, 30987), (939, 21879), (1287, 15963), (1683, 12207), (1989, 10329), (2431, 8451), (2817, 7293), (3443, 5967), (3861, 5321), (4069, 5049)]