78563709

素因数分解:

$3^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1381}}^1$

素因数の和:1447

約数の個数: 48

約数和(自身を含む): 138642240

約数和(自身を除く): 60078531

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 129, 147, 189, 301, 387, 441, 903, 1161, 1323, 1381, 2107, 2709, 4143, 6321, 8127, 9667, 12429, 18963, 29001, 37287, 56889, 59383, 67669, 87003, 178149, 203007, 261009, 415681, 534447, 609021, 1247043, 1603341, 1827063, 2909767, 3741129, 8729301, 11223387, 26187903, 78563709]

約数ペア:

[(1, 78563709), (3, 26187903), (7, 11223387), (9, 8729301), (21, 3741129), (27, 2909767), (43, 1827063), (49, 1603341), (63, 1247043), (129, 609021), (147, 534447), (189, 415681), (301, 261009), (387, 203007), (441, 178149), (903, 87003), (1161, 67669), (1323, 59383), (1381, 56889), (2107, 37287), (2709, 29001), (4143, 18963), (6321, 12429), (8127, 9667)]