7973721

素因数分解:

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

素因数の和:81

約数の個数: 50

約数和(自身を含む): 14234682

約数和(自身を除く): 6260961

約数列:

[1, 3, 7, 9, 21, 27, 41, 49, 63, 81, 123, 147, 189, 287, 343, 369, 441, 567, 861, 1029, 1107, 1323, 2009, 2401, 2583, 3087, 3321, 3969, 6027, 7203, 7749, 9261, 14063, 18081, 21609, 23247, 27783, 42189, 54243, 64827, 98441, 126567, 162729, 194481, 295323, 379701, 885969, 1139103, 2657907, 7973721]

約数ペア:

[(1, 7973721), (3, 2657907), (7, 1139103), (9, 885969), (21, 379701), (27, 295323), (41, 194481), (49, 162729), (63, 126567), (81, 98441), (123, 64827), (147, 54243), (189, 42189), (287, 27783), (343, 23247), (369, 21609), (441, 18081), (567, 14063), (861, 9261), (1029, 7749), (1107, 7203), (1323, 6027), (2009, 3969), (2401, 3321), (2583, 3087)]