2912778981

素因数分解:

$3^3\times 7^3\times {\mathrm{409}}^1\times {\mathrm{769}}^1$

素因数の和:1208

約数の個数: 64

約数和(自身を含む): 5051200000

約数和(自身を除く): 2138421019

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 409, 441, 769, 1029, 1227, 1323, 2307, 2863, 3087, 3681, 5383, 6921, 8589, 9261, 11043, 16149, 20041, 20763, 25767, 37681, 48447, 60123, 77301, 113043, 140287, 145341, 180369, 263767, 314521, 339129, 420861, 541107, 791301, 943563, 1017387, 1262583, 2201647, 2373903, 2830689, 3787749, 6604941, 7121709, 8492067, 15411529, 19814823, 46234587, 59444469, 107880703, 138703761, 323642109, 416111283, 970926327, 2912778981]

約数ペア:

[(1, 2912778981), (3, 970926327), (7, 416111283), (9, 323642109), (21, 138703761), (27, 107880703), (49, 59444469), (63, 46234587), (147, 19814823), (189, 15411529), (343, 8492067), (409, 7121709), (441, 6604941), (769, 3787749), (1029, 2830689), (1227, 2373903), (1323, 2201647), (2307, 1262583), (2863, 1017387), (3087, 943563), (3681, 791301), (5383, 541107), (6921, 420861), (8589, 339129), (9261, 314521), (11043, 263767), (16149, 180369), (20041, 145341), (20763, 140287), (25767, 113043), (37681, 77301), (48447, 60123)]