28247319

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 20136681

約数列:

[1, 3, 9, 17, 19, 27, 41, 51, 57, 79, 123, 153, 171, 237, 323, 369, 459, 513, 697, 711, 779, 969, 1107, 1343, 1501, 2091, 2133, 2337, 2907, 3239, 4029, 4503, 6273, 7011, 8721, 9717, 12087, 13243, 13509, 18819, 21033, 25517, 29151, 36261, 39729, 40527, 55063, 61541, 76551, 87453, 119187, 165189, 184623, 229653, 357561, 495567, 553869, 688959, 1046197, 1486701, 1661607, 3138591, 9415773, 28247319]

約数ペア:

[(1, 28247319), (3, 9415773), (9, 3138591), (17, 1661607), (19, 1486701), (27, 1046197), (41, 688959), (51, 553869), (57, 495567), (79, 357561), (123, 229653), (153, 184623), (171, 165189), (237, 119187), (323, 87453), (369, 76551), (459, 61541), (513, 55063), (697, 40527), (711, 39729), (779, 36261), (969, 29151), (1107, 25517), (1343, 21033), (1501, 18819), (2091, 13509), (2133, 13243), (2337, 12087), (2907, 9717), (3239, 8721), (4029, 7011), (4503, 6273)]