28290087

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^2$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 49857280

約数和(自身を除く): 21567193

約数列:

[1, 3, 7, 9, 21, 27, 43, 59, 63, 129, 177, 189, 301, 387, 413, 531, 903, 1161, 1239, 1593, 2537, 2709, 3481, 3717, 7611, 8127, 10443, 11151, 17759, 22833, 24367, 31329, 53277, 68499, 73101, 93987, 149683, 159831, 219303, 449049, 479493, 657909, 1047781, 1347147, 3143343, 4041441, 9430029, 28290087]

約数ペア:

[(1, 28290087), (3, 9430029), (7, 4041441), (9, 3143343), (21, 1347147), (27, 1047781), (43, 657909), (59, 479493), (63, 449049), (129, 219303), (177, 159831), (189, 149683), (301, 93987), (387, 73101), (413, 68499), (531, 53277), (903, 31329), (1161, 24367), (1239, 22833), (1593, 17759), (2537, 11151), (2709, 10443), (3481, 8127), (3717, 7611)]