21000983949

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{1009}}^1$

素因数の和:1275

約数の個数: 96

約数和(自身を含む): 35734608000

約数和(自身を除く): 14733624051

約数列:

[1, 3, 9, 11, 17, 33, 51, 83, 99, 149, 153, 187, 249, 447, 561, 747, 913, 1009, 1341, 1411, 1639, 1683, 2533, 2739, 3027, 4233, 4917, 7599, 8217, 9081, 11099, 12367, 12699, 14751, 15521, 17153, 22797, 27863, 33297, 37101, 46563, 51459, 83589, 83747, 99891, 111303, 136037, 139689, 150341, 154377, 188683, 210239, 250767, 251241, 408111, 451023, 566049, 630717, 753723, 921217, 1224333, 1353069, 1423699, 1653751, 1698147, 1892151, 2312629, 2555797, 2763651, 4271097, 4961253, 6937887, 7667391, 8290953, 12478303, 12813291, 14883759, 15660689, 20813661, 23002173, 28113767, 37434909, 46982067, 84341301, 112304727, 137261333, 140946201, 212131151, 253023903, 411783999, 636393453, 1235351997, 1909180359, 2333442661, 7000327983, 21000983949]

約数ペア:

[(1, 21000983949), (3, 7000327983), (9, 2333442661), (11, 1909180359), (17, 1235351997), (33, 636393453), (51, 411783999), (83, 253023903), (99, 212131151), (149, 140946201), (153, 137261333), (187, 112304727), (249, 84341301), (447, 46982067), (561, 37434909), (747, 28113767), (913, 23002173), (1009, 20813661), (1341, 15660689), (1411, 14883759), (1639, 12813291), (1683, 12478303), (2533, 8290953), (2739, 7667391), (3027, 6937887), (4233, 4961253), (4917, 4271097), (7599, 2763651), (8217, 2555797), (9081, 2312629), (11099, 1892151), (12367, 1698147), (12699, 1653751), (14751, 1423699), (15521, 1353069), (17153, 1224333), (22797, 921217), (27863, 753723), (33297, 630717), (37101, 566049), (46563, 451023), (51459, 408111), (83589, 251241), (83747, 250767), (99891, 210239), (111303, 188683), (136037, 154377), (139689, 150341)]