78851241

素因数分解:

$3^2\times 7^4\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:164

約数の個数: 60

約数和(自身を含む): 137641140

約数和(自身を除く): 58789899

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 89, 123, 147, 267, 287, 343, 369, 441, 623, 801, 861, 1029, 1869, 2009, 2401, 2583, 3087, 3649, 4361, 5607, 6027, 7203, 10947, 13083, 14063, 18081, 21609, 25543, 30527, 32841, 39249, 42189, 76629, 91581, 98441, 126567, 178801, 213689, 229887, 274743, 295323, 536403, 641067, 885969, 1251607, 1609209, 1923201, 3754821, 8761249, 11264463, 26283747, 78851241]

約数ペア:

[(1, 78851241), (3, 26283747), (7, 11264463), (9, 8761249), (21, 3754821), (41, 1923201), (49, 1609209), (63, 1251607), (89, 885969), (123, 641067), (147, 536403), (267, 295323), (287, 274743), (343, 229887), (369, 213689), (441, 178801), (623, 126567), (801, 98441), (861, 91581), (1029, 76629), (1869, 42189), (2009, 39249), (2401, 32841), (2583, 30527), (3087, 25543), (3649, 21609), (4361, 18081), (5607, 14063), (6027, 13083), (7203, 10947)]