28915623

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:146

約数の個数: 80

約数和(自身を含む): 52690176

約数和(自身を除く): 23774553

約数列:

[1, 3, 9, 11, 17, 23, 27, 33, 51, 69, 81, 83, 99, 153, 187, 207, 249, 253, 297, 391, 459, 561, 621, 747, 759, 891, 913, 1173, 1377, 1411, 1683, 1863, 1909, 2241, 2277, 2739, 3519, 4233, 4301, 5049, 5727, 6723, 6831, 8217, 10557, 12699, 12903, 15147, 15521, 17181, 20493, 20999, 24651, 31671, 32453, 38097, 38709, 46563, 51543, 62997, 73953, 97359, 114291, 116127, 139689, 154629, 188991, 292077, 348381, 356983, 419067, 566973, 876231, 1070949, 1257201, 1700919, 2628693, 3212847, 9638541, 28915623]

約数ペア:

[(1, 28915623), (3, 9638541), (9, 3212847), (11, 2628693), (17, 1700919), (23, 1257201), (27, 1070949), (33, 876231), (51, 566973), (69, 419067), (81, 356983), (83, 348381), (99, 292077), (153, 188991), (187, 154629), (207, 139689), (249, 116127), (253, 114291), (297, 97359), (391, 73953), (459, 62997), (561, 51543), (621, 46563), (747, 38709), (759, 38097), (891, 32453), (913, 31671), (1173, 24651), (1377, 20999), (1411, 20493), (1683, 17181), (1863, 15521), (1909, 15147), (2241, 12903), (2277, 12699), (2739, 10557), (3519, 8217), (4233, 6831), (4301, 6723), (5049, 5727)]