28084959

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 20347425

約数列:

[1, 3, 7, 9, 21, 41, 63, 83, 123, 131, 249, 287, 369, 393, 581, 747, 861, 917, 1179, 1743, 2583, 2751, 3403, 5229, 5371, 8253, 10209, 10873, 16113, 23821, 30627, 32619, 37597, 48339, 71463, 76111, 97857, 112791, 214389, 228333, 338373, 445793, 684999, 1337379, 3120551, 4012137, 9361653, 28084959]

約数ペア:

[(1, 28084959), (3, 9361653), (7, 4012137), (9, 3120551), (21, 1337379), (41, 684999), (63, 445793), (83, 338373), (123, 228333), (131, 214389), (249, 112791), (287, 97857), (369, 76111), (393, 71463), (581, 48339), (747, 37597), (861, 32619), (917, 30627), (1179, 23821), (1743, 16113), (2583, 10873), (2751, 10209), (3403, 8253), (5229, 5371)]