21799691487

素因数分解:

$3^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{491}}^1\times {\mathrm{907}}^1$

素因数の和:1458

約数の個数: 96

約数和(自身を含む): 38705207040

約数和(自身を除く): 16905515553

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 63, 111, 147, 189, 259, 333, 441, 491, 777, 907, 999, 1323, 1473, 1813, 2331, 2721, 3437, 4419, 5439, 6349, 6993, 8163, 10311, 13257, 16317, 18167, 19047, 24059, 24489, 30933, 33559, 44443, 48951, 54501, 57141, 72177, 92799, 100677, 127169, 133329, 163503, 171423, 216531, 234913, 302031, 381507, 399987, 445337, 490509, 649593, 704739, 890183, 906093, 1144521, 1199961, 1336011, 1644391, 2114217, 2670549, 3117359, 3433563, 4008033, 4933173, 6342651, 8011647, 9352077, 12024099, 14799519, 16477469, 21821513, 24034941, 28056231, 44398557, 49432407, 65464539, 84168693, 115342283, 148297221, 196393617, 346026849, 444891663, 589180851, 807395981, 1038080547, 2422187943, 3114241641, 7266563829, 21799691487]

約数ペア:

[(1, 21799691487), (3, 7266563829), (7, 3114241641), (9, 2422187943), (21, 1038080547), (27, 807395981), (37, 589180851), (49, 444891663), (63, 346026849), (111, 196393617), (147, 148297221), (189, 115342283), (259, 84168693), (333, 65464539), (441, 49432407), (491, 44398557), (777, 28056231), (907, 24034941), (999, 21821513), (1323, 16477469), (1473, 14799519), (1813, 12024099), (2331, 9352077), (2721, 8011647), (3437, 6342651), (4419, 4933173), (5439, 4008033), (6349, 3433563), (6993, 3117359), (8163, 2670549), (10311, 2114217), (13257, 1644391), (16317, 1336011), (18167, 1199961), (19047, 1144521), (24059, 906093), (24489, 890183), (30933, 704739), (33559, 649593), (44443, 490509), (48951, 445337), (54501, 399987), (57141, 381507), (72177, 302031), (92799, 234913), (100677, 216531), (127169, 171423), (133329, 163503)]