81154143

素因数分解:

$3^4\times 7^3\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:183

約数の個数: 80

約数和(自身を含む): 148684800

約数和(自身を除く): 67530657

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 81, 127, 147, 161, 189, 207, 343, 381, 441, 483, 567, 621, 889, 1029, 1127, 1143, 1323, 1449, 1863, 2667, 2921, 3087, 3381, 3429, 3969, 4347, 6223, 7889, 8001, 8763, 9261, 10143, 10287, 13041, 18669, 20447, 23667, 24003, 26289, 27783, 30429, 43561, 56007, 61341, 71001, 72009, 78867, 91287, 130683, 143129, 168021, 184023, 213003, 236601, 392049, 429387, 504063, 552069, 639009, 1001903, 1176147, 1288161, 1656207, 3005709, 3528441, 3864483, 9017127, 11593449, 27051381, 81154143]

約数ペア:

[(1, 81154143), (3, 27051381), (7, 11593449), (9, 9017127), (21, 3864483), (23, 3528441), (27, 3005709), (49, 1656207), (63, 1288161), (69, 1176147), (81, 1001903), (127, 639009), (147, 552069), (161, 504063), (189, 429387), (207, 392049), (343, 236601), (381, 213003), (441, 184023), (483, 168021), (567, 143129), (621, 130683), (889, 91287), (1029, 78867), (1127, 72009), (1143, 71001), (1323, 61341), (1449, 56007), (1863, 43561), (2667, 30429), (2921, 27783), (3087, 26289), (3381, 24003), (3429, 23667), (3969, 20447), (4347, 18669), (6223, 13041), (7889, 10287), (8001, 10143), (8763, 9261)]