28578717

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 20669283

約数列:

[1, 3, 9, 17, 19, 27, 29, 51, 57, 87, 113, 153, 171, 261, 323, 339, 459, 493, 513, 551, 783, 969, 1017, 1479, 1653, 1921, 2147, 2907, 3051, 3277, 4437, 4959, 5763, 6441, 8721, 9367, 9831, 13311, 14877, 17289, 19323, 28101, 29493, 36499, 51867, 55709, 57969, 62263, 84303, 88479, 109497, 167127, 186789, 252909, 328491, 501381, 560367, 985473, 1058471, 1504143, 1681101, 3175413, 9526239, 28578717]

約数ペア:

[(1, 28578717), (3, 9526239), (9, 3175413), (17, 1681101), (19, 1504143), (27, 1058471), (29, 985473), (51, 560367), (57, 501381), (87, 328491), (113, 252909), (153, 186789), (171, 167127), (261, 109497), (323, 88479), (339, 84303), (459, 62263), (493, 57969), (513, 55709), (551, 51867), (783, 36499), (969, 29493), (1017, 28101), (1479, 19323), (1653, 17289), (1921, 14877), (2147, 13311), (2907, 9831), (3051, 9367), (3277, 8721), (4437, 6441), (4959, 5763)]