7941969

素因数分解:

$3^5\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:81

約数の個数: 72

約数和(自身を含む): 14938560

約数和(自身を除く): 6996591

約数列:

[1, 3, 7, 9, 21, 23, 27, 29, 49, 63, 69, 81, 87, 147, 161, 189, 203, 207, 243, 261, 441, 483, 567, 609, 621, 667, 783, 1127, 1323, 1421, 1449, 1701, 1827, 1863, 2001, 2349, 3381, 3969, 4263, 4347, 4669, 5481, 5589, 6003, 7047, 10143, 11907, 12789, 13041, 14007, 16443, 18009, 30429, 32683, 38367, 39123, 42021, 49329, 54027, 91287, 98049, 115101, 126063, 162081, 273861, 294147, 345303, 378189, 882441, 1134567, 2647323, 7941969]

約数ペア:

[(1, 7941969), (3, 2647323), (7, 1134567), (9, 882441), (21, 378189), (23, 345303), (27, 294147), (29, 273861), (49, 162081), (63, 126063), (69, 115101), (81, 98049), (87, 91287), (147, 54027), (161, 49329), (189, 42021), (203, 39123), (207, 38367), (243, 32683), (261, 30429), (441, 18009), (483, 16443), (567, 14007), (609, 13041), (621, 12789), (667, 11907), (783, 10143), (1127, 7047), (1323, 6003), (1421, 5589), (1449, 5481), (1701, 4669), (1827, 4347), (1863, 4263), (2001, 3969), (2349, 3381)]