19816335

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:98

約数の個数: 144

約数和(自身を含む): 46949760

約数和(自身を除く): 27133425

約数列:

[1, 3, 5, 7, 9, 11, 15, 19, 21, 33, 35, 43, 45, 49, 55, 57, 63, 77, 95, 99, 105, 129, 133, 147, 165, 171, 209, 215, 231, 245, 285, 301, 315, 385, 387, 399, 441, 473, 495, 539, 627, 645, 665, 693, 735, 817, 855, 903, 931, 1045, 1155, 1197, 1419, 1463, 1505, 1617, 1881, 1935, 1995, 2107, 2205, 2365, 2451, 2695, 2709, 2793, 3135, 3311, 3465, 4085, 4257, 4389, 4515, 4655, 4851, 5719, 5985, 6321, 7095, 7315, 7353, 8085, 8379, 8987, 9405, 9933, 10241, 10535, 12255, 13167, 13545, 13965, 16555, 17157, 18963, 21285, 21945, 23177, 24255, 26961, 28595, 29799, 30723, 31605, 36765, 40033, 41895, 44935, 49665, 51205, 51471, 62909, 65835, 69531, 80883, 85785, 92169, 94815, 115885, 120099, 134805, 148995, 153615, 188727, 200165, 208593, 257355, 314545, 347655, 360297, 404415, 440363, 460845, 566181, 600495, 943635, 1042965, 1321089, 1801485, 2201815, 2830905, 3963267, 6605445, 19816335]

約数ペア:

[(1, 19816335), (3, 6605445), (5, 3963267), (7, 2830905), (9, 2201815), (11, 1801485), (15, 1321089), (19, 1042965), (21, 943635), (33, 600495), (35, 566181), (43, 460845), (45, 440363), (49, 404415), (55, 360297), (57, 347655), (63, 314545), (77, 257355), (95, 208593), (99, 200165), (105, 188727), (129, 153615), (133, 148995), (147, 134805), (165, 120099), (171, 115885), (209, 94815), (215, 92169), (231, 85785), (245, 80883), (285, 69531), (301, 65835), (315, 62909), (385, 51471), (387, 51205), (399, 49665), (441, 44935), (473, 41895), (495, 40033), (539, 36765), (627, 31605), (645, 30723), (665, 29799), (693, 28595), (735, 26961), (817, 24255), (855, 23177), (903, 21945), (931, 21285), (1045, 18963), (1155, 17157), (1197, 16555), (1419, 13965), (1463, 13545), (1505, 13167), (1617, 12255), (1881, 10535), (1935, 10241), (1995, 9933), (2107, 9405), (2205, 8987), (2365, 8379), (2451, 8085), (2695, 7353), (2709, 7315), (2793, 7095), (3135, 6321), (3311, 5985), (3465, 5719), (4085, 4851), (4257, 4655), (4389, 4515)]