20647510191

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2297}}^1$

素因数の和:2454

約数の個数: 144

約数和(自身を含む): 40458955680

約数和(自身を除く): 19811445489

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 49, 51, 63, 77, 99, 109, 119, 147, 153, 187, 231, 327, 357, 441, 539, 561, 693, 763, 833, 981, 1071, 1199, 1309, 1617, 1683, 1853, 2289, 2297, 2499, 3597, 3927, 4851, 5341, 5559, 6867, 6891, 7497, 8393, 9163, 10791, 11781, 12971, 16023, 16079, 16677, 20383, 20673, 25179, 25267, 27489, 38913, 39049, 48069, 48237, 58751, 61149, 75537, 75801, 82467, 90797, 112553, 116739, 117147, 142681, 144711, 176253, 176869, 183447, 227403, 250373, 272391, 273343, 337659, 351441, 428043, 429539, 528759, 530607, 751119, 817173, 820029, 998767, 1012977, 1238083, 1284129, 1288617, 1591821, 1752611, 1913401, 2253357, 2460087, 2754103, 2996301, 3006773, 3714249, 3865851, 4256341, 5257833, 5740203, 8262309, 8988903, 9020319, 11142747, 12268277, 12769023, 15773499, 17220609, 19278721, 21047411, 24786927, 27060957, 29794387, 36804831, 38307069, 46819751, 57836163, 63142233, 89383161, 110414493, 134951047, 140459253, 173508489, 189426699, 208560709, 268149483, 327738257, 404853141, 421377759, 625682127, 983214771, 1214559423, 1877046381, 2294167799, 2949644313, 6882503397, 20647510191]

約数ペア:

[(1, 20647510191), (3, 6882503397), (7, 2949644313), (9, 2294167799), (11, 1877046381), (17, 1214559423), (21, 983214771), (33, 625682127), (49, 421377759), (51, 404853141), (63, 327738257), (77, 268149483), (99, 208560709), (109, 189426699), (119, 173508489), (147, 140459253), (153, 134951047), (187, 110414493), (231, 89383161), (327, 63142233), (357, 57836163), (441, 46819751), (539, 38307069), (561, 36804831), (693, 29794387), (763, 27060957), (833, 24786927), (981, 21047411), (1071, 19278721), (1199, 17220609), (1309, 15773499), (1617, 12769023), (1683, 12268277), (1853, 11142747), (2289, 9020319), (2297, 8988903), (2499, 8262309), (3597, 5740203), (3927, 5257833), (4851, 4256341), (5341, 3865851), (5559, 3714249), (6867, 3006773), (6891, 2996301), (7497, 2754103), (8393, 2460087), (9163, 2253357), (10791, 1913401), (11781, 1752611), (12971, 1591821), (16023, 1288617), (16079, 1284129), (16677, 1238083), (20383, 1012977), (20673, 998767), (25179, 820029), (25267, 817173), (27489, 751119), (38913, 530607), (39049, 528759), (48069, 429539), (48237, 428043), (58751, 351441), (61149, 337659), (75537, 273343), (75801, 272391), (82467, 250373), (90797, 227403), (112553, 183447), (116739, 176869), (117147, 176253), (142681, 144711)]