251487821997

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{264881}}^1$

素因数の和:265042

約数の個数: 48

約数和(自身を含む): 388753537536

約数和(自身を除く): 137265715539

約数列:

[1, 3, 9, 31, 41, 83, 93, 123, 249, 279, 369, 747, 1271, 2573, 3403, 3813, 7719, 10209, 11439, 23157, 30627, 105493, 264881, 316479, 794643, 949437, 2383929, 8211311, 10860121, 21985123, 24633933, 32580363, 65955369, 73901799, 97741089, 197866107, 336663751, 681538813, 901390043, 1009991253, 2044616439, 2704170129, 3029973759, 6133849317, 8112510387, 27943091333, 83829273999, 251487821997]

約数ペア:

[(1, 251487821997), (3, 83829273999), (9, 27943091333), (31, 8112510387), (41, 6133849317), (83, 3029973759), (93, 2704170129), (123, 2044616439), (249, 1009991253), (279, 901390043), (369, 681538813), (747, 336663751), (1271, 197866107), (2573, 97741089), (3403, 73901799), (3813, 65955369), (7719, 32580363), (10209, 24633933), (11439, 21985123), (23157, 10860121), (30627, 8211311), (105493, 2383929), (264881, 949437), (316479, 794643)]