21000407043

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{521}}^1\times {\mathrm{547}}^1$

素因数の和:1129

約数の個数: 96

約数和(自身を含む): 36523630080

約数和(自身を除く): 15523223037

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 121, 203, 231, 319, 363, 521, 547, 609, 847, 957, 1563, 1641, 2233, 2541, 3509, 3647, 3829, 5731, 6017, 6699, 10527, 10941, 11487, 15109, 15863, 17193, 18051, 24563, 40117, 42119, 45327, 47589, 63041, 66187, 73689, 105763, 111041, 120351, 126357, 166199, 174493, 189123, 198561, 284987, 317289, 333123, 441287, 463309, 498597, 523479, 854961, 1163393, 1221451, 1323861, 1389927, 1828189, 1919423, 1994909, 3134857, 3490179, 3664353, 5484567, 5758269, 5984727, 8264623, 9404571, 12797323, 13435961, 21943999, 24793869, 34483427, 38391969, 40307883, 57852361, 65831997, 90910853, 103450281, 173557083, 241383989, 272732559, 636375971, 724151967, 1000019383, 1909127913, 3000058149, 7000135681, 21000407043]

約数ペア:

[(1, 21000407043), (3, 7000135681), (7, 3000058149), (11, 1909127913), (21, 1000019383), (29, 724151967), (33, 636375971), (77, 272732559), (87, 241383989), (121, 173557083), (203, 103450281), (231, 90910853), (319, 65831997), (363, 57852361), (521, 40307883), (547, 38391969), (609, 34483427), (847, 24793869), (957, 21943999), (1563, 13435961), (1641, 12797323), (2233, 9404571), (2541, 8264623), (3509, 5984727), (3647, 5758269), (3829, 5484567), (5731, 3664353), (6017, 3490179), (6699, 3134857), (10527, 1994909), (10941, 1919423), (11487, 1828189), (15109, 1389927), (15863, 1323861), (17193, 1221451), (18051, 1163393), (24563, 854961), (40117, 523479), (42119, 498597), (45327, 463309), (47589, 441287), (63041, 333123), (66187, 317289), (73689, 284987), (105763, 198561), (111041, 189123), (120351, 174493), (126357, 166199)]