21000421442

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:485

約数の個数: 192

約数和(自身を含む): 44390556672

約数和(自身を除く): 23390135230

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 43, 67, 77, 86, 91, 121, 134, 143, 154, 182, 242, 286, 301, 331, 469, 473, 559, 602, 662, 737, 847, 871, 938, 946, 1001, 1118, 1474, 1573, 1694, 1742, 2002, 2317, 2881, 3146, 3311, 3641, 3913, 4303, 4634, 5159, 5203, 5762, 6097, 6149, 6622, 7282, 7826, 8107, 8606, 9581, 10318, 10406, 11011, 12194, 12298, 14233, 16214, 19162, 20167, 22022, 22177, 25487, 28466, 30121, 31691, 36421, 37453, 40051, 40334, 43043, 44354, 47333, 50974, 56749, 60242, 63382, 67067, 67639, 72842, 74906, 80102, 86086, 94666, 99631, 105391, 113498, 134134, 135278, 155239, 156563, 185029, 199262, 210782, 221837, 243947, 262171, 280357, 288301, 310478, 313126, 331331, 348601, 370058, 411983, 443674, 473473, 487894, 520663, 524342, 560714, 576602, 662662, 697202, 737737, 823966, 946946, 953611, 1041326, 1095941, 1295203, 1475474, 1707629, 1722193, 1907222, 2018107, 2035319, 2191882, 2440207, 2590406, 2683417, 2883881, 3171311, 3415258, 3444386, 3644641, 4036214, 4070638, 4531813, 4880414, 5366834, 5767762, 6342622, 6675277, 7289282, 9063626, 10489721, 12055351, 12396943, 13350554, 14247233, 18783919, 20979442, 22199177, 22388509, 24110702, 24793886, 28494466, 31722691, 34884421, 37567838, 44398354, 44777018, 63445382, 69768842, 73428047, 86778601, 115386931, 136366373, 146856094, 156719563, 173557202, 230773862, 244190947, 272732746, 313439126, 488381894, 807708517, 954564611, 1500030103, 1615417034, 1909129222, 3000060206, 10500210721, 21000421442]

約数ペア:

[(1, 21000421442), (2, 10500210721), (7, 3000060206), (11, 1909129222), (13, 1615417034), (14, 1500030103), (22, 954564611), (26, 807708517), (43, 488381894), (67, 313439126), (77, 272732746), (86, 244190947), (91, 230773862), (121, 173557202), (134, 156719563), (143, 146856094), (154, 136366373), (182, 115386931), (242, 86778601), (286, 73428047), (301, 69768842), (331, 63445382), (469, 44777018), (473, 44398354), (559, 37567838), (602, 34884421), (662, 31722691), (737, 28494466), (847, 24793886), (871, 24110702), (938, 22388509), (946, 22199177), (1001, 20979442), (1118, 18783919), (1474, 14247233), (1573, 13350554), (1694, 12396943), (1742, 12055351), (2002, 10489721), (2317, 9063626), (2881, 7289282), (3146, 6675277), (3311, 6342622), (3641, 5767762), (3913, 5366834), (4303, 4880414), (4634, 4531813), (5159, 4070638), (5203, 4036214), (5762, 3644641), (6097, 3444386), (6149, 3415258), (6622, 3171311), (7282, 2883881), (7826, 2683417), (8107, 2590406), (8606, 2440207), (9581, 2191882), (10318, 2035319), (10406, 2018107), (11011, 1907222), (12194, 1722193), (12298, 1707629), (14233, 1475474), (16214, 1295203), (19162, 1095941), (20167, 1041326), (22022, 953611), (22177, 946946), (25487, 823966), (28466, 737737), (30121, 697202), (31691, 662662), (36421, 576602), (37453, 560714), (40051, 524342), (40334, 520663), (43043, 487894), (44354, 473473), (47333, 443674), (50974, 411983), (56749, 370058), (60242, 348601), (63382, 331331), (67067, 313126), (67639, 310478), (72842, 288301), (74906, 280357), (80102, 262171), (86086, 243947), (94666, 221837), (99631, 210782), (105391, 199262), (113498, 185029), (134134, 156563), (135278, 155239)]