28971789

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:111

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 26185971

約数列:

[1, 3, 7, 11, 19, 21, 23, 33, 41, 49, 57, 69, 77, 123, 133, 147, 161, 209, 231, 253, 287, 399, 437, 451, 483, 539, 627, 759, 779, 861, 931, 943, 1127, 1311, 1353, 1463, 1617, 1771, 2009, 2337, 2793, 2829, 3059, 3157, 3381, 4389, 4807, 5313, 5453, 6027, 6601, 8569, 9177, 9471, 10241, 10373, 12397, 14421, 16359, 17917, 19803, 21413, 22099, 25707, 30723, 31119, 33649, 37191, 38171, 46207, 53751, 59983, 64239, 66297, 72611, 100947, 114513, 125419, 138621, 179949, 197087, 217833, 235543, 376257, 419881, 508277, 591261, 706629, 877933, 1259643, 1379609, 1524831, 2633799, 4138827, 9657263, 28971789]

約数ペア:

[(1, 28971789), (3, 9657263), (7, 4138827), (11, 2633799), (19, 1524831), (21, 1379609), (23, 1259643), (33, 877933), (41, 706629), (49, 591261), (57, 508277), (69, 419881), (77, 376257), (123, 235543), (133, 217833), (147, 197087), (161, 179949), (209, 138621), (231, 125419), (253, 114513), (287, 100947), (399, 72611), (437, 66297), (451, 64239), (483, 59983), (539, 53751), (627, 46207), (759, 38171), (779, 37191), (861, 33649), (931, 31119), (943, 30723), (1127, 25707), (1311, 22099), (1353, 21413), (1463, 19803), (1617, 17917), (1771, 16359), (2009, 14421), (2337, 12397), (2793, 10373), (2829, 10241), (3059, 9471), (3157, 9177), (3381, 8569), (4389, 6601), (4807, 6027), (5313, 5453)]