20808821907

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:581

約数の個数: 96

約数和(自身を含む): 33389928000

約数和(自身を除く): 12581106093

約数列:

[1, 3, 9, 19, 29, 57, 87, 109, 137, 171, 261, 281, 327, 411, 551, 843, 981, 1233, 1653, 2071, 2529, 2603, 3161, 3973, 4959, 5339, 6213, 7809, 8149, 9483, 11919, 14933, 16017, 18639, 23427, 24447, 28449, 30629, 35757, 38497, 44799, 48051, 60059, 73341, 75487, 91887, 115491, 134397, 154831, 180177, 226461, 275661, 283727, 346473, 433057, 464493, 540531, 581951, 679383, 731443, 851181, 888241, 1116413, 1299171, 1393479, 1745853, 2194329, 2553543, 2664723, 3349239, 3897513, 4196173, 5237559, 6582987, 7994169, 8228083, 10047717, 12588519, 16876579, 21211847, 24684249, 37765557, 50629737, 63635541, 74052747, 79727287, 121689017, 151889211, 190906623, 239181861, 365067051, 717545583, 1095201153, 2312091323, 6936273969, 20808821907]

約数ペア:

[(1, 20808821907), (3, 6936273969), (9, 2312091323), (19, 1095201153), (29, 717545583), (57, 365067051), (87, 239181861), (109, 190906623), (137, 151889211), (171, 121689017), (261, 79727287), (281, 74052747), (327, 63635541), (411, 50629737), (551, 37765557), (843, 24684249), (981, 21211847), (1233, 16876579), (1653, 12588519), (2071, 10047717), (2529, 8228083), (2603, 7994169), (3161, 6582987), (3973, 5237559), (4959, 4196173), (5339, 3897513), (6213, 3349239), (7809, 2664723), (8149, 2553543), (9483, 2194329), (11919, 1745853), (14933, 1393479), (16017, 1299171), (18639, 1116413), (23427, 888241), (24447, 851181), (28449, 731443), (30629, 679383), (35757, 581951), (38497, 540531), (44799, 464493), (48051, 433057), (60059, 346473), (73341, 283727), (75487, 275661), (91887, 226461), (115491, 180177), (134397, 154831)]