21000895006

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:319

約数の個数: 192

約数和(自身を含む): 42361159680

約数和(自身を除く): 21360264674

約数列:

[1, 2, 7, 13, 14, 26, 31, 49, 53, 62, 79, 91, 98, 106, 127, 158, 182, 217, 254, 371, 403, 434, 553, 637, 689, 742, 806, 889, 1027, 1106, 1274, 1378, 1519, 1643, 1651, 1778, 2054, 2449, 2597, 2821, 3038, 3286, 3302, 3871, 3937, 4187, 4823, 4898, 5194, 5642, 6223, 6731, 7189, 7742, 7874, 8374, 9646, 10033, 11501, 11557, 12446, 13462, 14378, 17143, 19747, 20066, 21359, 23002, 23114, 27559, 29309, 31837, 33761, 34286, 39494, 42718, 47117, 50323, 51181, 54431, 55118, 58618, 63674, 67522, 70231, 80507, 80899, 87503, 94234, 100646, 102362, 108862, 120001, 129797, 130429, 140462, 149513, 161014, 161798, 175006, 192913, 205163, 208661, 222859, 240002, 259594, 260858, 299026, 311023, 329819, 358267, 381017, 385826, 410326, 417322, 445718, 491617, 531749, 612521, 622046, 659638, 716534, 762034, 908579, 913003, 983234, 1046591, 1063498, 1225042, 1460627, 1560013, 1687361, 1817158, 1826006, 2093182, 2177161, 2507869, 2667119, 2712593, 2921254, 3120026, 3374722, 3722243, 4043299, 4287647, 4354322, 5015738, 5334238, 5425186, 6360053, 6391021, 6912737, 7444486, 8086598, 8575294, 10224389, 11811527, 12720106, 12782042, 13825474, 15240127, 16484219, 18988151, 20448778, 23623054, 26055701, 28303093, 30480254, 32968438, 37976302, 48389159, 52111402, 56606186, 82680689, 96778318, 115389533, 132917057, 165361378, 198121651, 214294847, 230779066, 265834114, 338724113, 396243302, 428589694, 677448226, 807726731, 1500063929, 1615453462, 3000127858, 10500447503, 21000895006]

約数ペア:

[(1, 21000895006), (2, 10500447503), (7, 3000127858), (13, 1615453462), (14, 1500063929), (26, 807726731), (31, 677448226), (49, 428589694), (53, 396243302), (62, 338724113), (79, 265834114), (91, 230779066), (98, 214294847), (106, 198121651), (127, 165361378), (158, 132917057), (182, 115389533), (217, 96778318), (254, 82680689), (371, 56606186), (403, 52111402), (434, 48389159), (553, 37976302), (637, 32968438), (689, 30480254), (742, 28303093), (806, 26055701), (889, 23623054), (1027, 20448778), (1106, 18988151), (1274, 16484219), (1378, 15240127), (1519, 13825474), (1643, 12782042), (1651, 12720106), (1778, 11811527), (2054, 10224389), (2449, 8575294), (2597, 8086598), (2821, 7444486), (3038, 6912737), (3286, 6391021), (3302, 6360053), (3871, 5425186), (3937, 5334238), (4187, 5015738), (4823, 4354322), (4898, 4287647), (5194, 4043299), (5642, 3722243), (6223, 3374722), (6731, 3120026), (7189, 2921254), (7742, 2712593), (7874, 2667119), (8374, 2507869), (9646, 2177161), (10033, 2093182), (11501, 1826006), (11557, 1817158), (12446, 1687361), (13462, 1560013), (14378, 1460627), (17143, 1225042), (19747, 1063498), (20066, 1046591), (21359, 983234), (23002, 913003), (23114, 908579), (27559, 762034), (29309, 716534), (31837, 659638), (33761, 622046), (34286, 612521), (39494, 531749), (42718, 491617), (47117, 445718), (50323, 417322), (51181, 410326), (54431, 385826), (55118, 381017), (58618, 358267), (63674, 329819), (67522, 311023), (70231, 299026), (80507, 260858), (80899, 259594), (87503, 240002), (94234, 222859), (100646, 208661), (102362, 205163), (108862, 192913), (120001, 175006), (129797, 161798), (130429, 161014), (140462, 149513)]