28159659

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 19014741

約数列:

[1, 3, 9, 11, 23, 33, 69, 83, 99, 149, 207, 249, 253, 447, 747, 759, 913, 1341, 1639, 1909, 2277, 2739, 3427, 4917, 5727, 8217, 10281, 12367, 14751, 17181, 20999, 30843, 37101, 37697, 62997, 111303, 113091, 136037, 188991, 284441, 339273, 408111, 853323, 1224333, 2559969, 3128851, 9386553, 28159659]

約数ペア:

[(1, 28159659), (3, 9386553), (9, 3128851), (11, 2559969), (23, 1224333), (33, 853323), (69, 408111), (83, 339273), (99, 284441), (149, 188991), (207, 136037), (249, 113091), (253, 111303), (447, 62997), (747, 37697), (759, 37101), (913, 30843), (1341, 20999), (1639, 17181), (1909, 14751), (2277, 12367), (2739, 10281), (3427, 8217), (4917, 5727)]