21500246306

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:305

約数の個数: 144

約数和(自身を含む): 42540115968

約数和(自身を除く): 21039869662

約数列:

[1, 2, 7, 11, 14, 22, 37, 73, 74, 77, 121, 127, 146, 154, 242, 254, 259, 407, 511, 518, 803, 814, 847, 889, 1022, 1369, 1397, 1606, 1694, 1778, 2701, 2738, 2794, 2849, 4477, 4699, 5402, 5621, 5698, 8833, 8954, 9271, 9398, 9583, 9779, 11242, 15059, 15367, 17666, 18542, 18907, 19166, 19558, 29711, 30118, 30734, 31339, 32893, 37814, 51689, 59422, 61831, 62678, 64897, 65786, 99937, 101981, 103378, 105413, 107569, 123662, 129794, 165649, 173863, 199874, 203962, 207977, 210826, 215138, 326821, 331298, 343027, 347726, 361823, 415954, 568579, 653642, 686054, 699559, 713867, 723646, 1099307, 1121791, 1137158, 1159543, 1217041, 1399118, 1427734, 1912493, 2198614, 2243582, 2287747, 2319086, 2401189, 2434082, 3773297, 3824986, 3980053, 4575494, 4802378, 7546594, 7695149, 7852537, 7960106, 12092377, 12691999, 13387451, 15390298, 15705074, 21037423, 24184754, 25383998, 26413079, 26774902, 41506267, 42074846, 52826158, 83012534, 84646639, 88843993, 139611989, 147261961, 169293278, 177687986, 279223978, 290543869, 294523922, 581087738, 977283923, 1535731879, 1954567846, 3071463758, 10750123153, 21500246306]

約数ペア:

[(1, 21500246306), (2, 10750123153), (7, 3071463758), (11, 1954567846), (14, 1535731879), (22, 977283923), (37, 581087738), (73, 294523922), (74, 290543869), (77, 279223978), (121, 177687986), (127, 169293278), (146, 147261961), (154, 139611989), (242, 88843993), (254, 84646639), (259, 83012534), (407, 52826158), (511, 42074846), (518, 41506267), (803, 26774902), (814, 26413079), (847, 25383998), (889, 24184754), (1022, 21037423), (1369, 15705074), (1397, 15390298), (1606, 13387451), (1694, 12691999), (1778, 12092377), (2701, 7960106), (2738, 7852537), (2794, 7695149), (2849, 7546594), (4477, 4802378), (4699, 4575494), (5402, 3980053), (5621, 3824986), (5698, 3773297), (8833, 2434082), (8954, 2401189), (9271, 2319086), (9398, 2287747), (9583, 2243582), (9779, 2198614), (11242, 1912493), (15059, 1427734), (15367, 1399118), (17666, 1217041), (18542, 1159543), (18907, 1137158), (19166, 1121791), (19558, 1099307), (29711, 723646), (30118, 713867), (30734, 699559), (31339, 686054), (32893, 653642), (37814, 568579), (51689, 415954), (59422, 361823), (61831, 347726), (62678, 343027), (64897, 331298), (65786, 326821), (99937, 215138), (101981, 210826), (103378, 207977), (105413, 203962), (107569, 199874), (123662, 173863), (129794, 165649)]