19263321

素因数分解:

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

素因数の和:80

約数の個数: 81

約数和(自身を含む): 37548693

約数和(自身を除く): 18285372

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 49, 57, 63, 77, 99, 121, 133, 147, 171, 209, 231, 361, 363, 399, 441, 539, 627, 693, 847, 931, 1083, 1089, 1197, 1463, 1617, 1881, 2299, 2527, 2541, 2793, 3249, 3971, 4389, 4851, 5929, 6897, 7581, 7623, 8379, 10241, 11913, 13167, 16093, 17689, 17787, 20691, 22743, 27797, 30723, 35739, 43681, 48279, 53067, 53361, 83391, 92169, 112651, 131043, 144837, 159201, 194579, 250173, 305767, 337953, 393129, 583737, 917301, 1013859, 1751211, 2140369, 2751903, 6421107, 19263321]

約数ペア:

[(1, 19263321), (3, 6421107), (7, 2751903), (9, 2140369), (11, 1751211), (19, 1013859), (21, 917301), (33, 583737), (49, 393129), (57, 337953), (63, 305767), (77, 250173), (99, 194579), (121, 159201), (133, 144837), (147, 131043), (171, 112651), (209, 92169), (231, 83391), (361, 53361), (363, 53067), (399, 48279), (441, 43681), (539, 35739), (627, 30723), (693, 27797), (847, 22743), (931, 20691), (1083, 17787), (1089, 17689), (1197, 16093), (1463, 13167), (1617, 11913), (1881, 10241), (2299, 8379), (2527, 7623), (2541, 7581), (2793, 6897), (3249, 5929), (3971, 4851)]