261567779991

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{168869}}^1$

素因数の和:169184

約数の個数: 48

約数和(自身を含む): 417211572960

約数和(自身を除く): 155643792969

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 257, 287, 771, 861, 1799, 2009, 5397, 6027, 10537, 12593, 31611, 37779, 73759, 168869, 221277, 506607, 516313, 1182083, 1548939, 3546249, 6923629, 8274581, 20770887, 24823743, 43399333, 48465403, 130197999, 145396209, 303795331, 339257821, 911385993, 1017773463, 1779372653, 2126567317, 5338117959, 6379701951, 12455608571, 37366825713, 87189259997, 261567779991]

約数ペア:

[(1, 261567779991), (3, 87189259997), (7, 37366825713), (21, 12455608571), (41, 6379701951), (49, 5338117959), (123, 2126567317), (147, 1779372653), (257, 1017773463), (287, 911385993), (771, 339257821), (861, 303795331), (1799, 145396209), (2009, 130197999), (5397, 48465403), (6027, 43399333), (10537, 24823743), (12593, 20770887), (31611, 8274581), (37779, 6923629), (73759, 3546249), (168869, 1548939), (221277, 1182083), (506607, 516313)]