21909694821

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{853}}^1$

素因数の和:1071

約数の個数: 96

約数和(自身を含む): 36337932288

約数和(自身を除く): 14428237467

約数列:

[1, 3, 7, 21, 23, 49, 69, 71, 107, 147, 161, 213, 321, 483, 497, 749, 853, 1127, 1491, 1633, 2247, 2461, 2559, 3381, 3479, 4899, 5243, 5971, 7383, 7597, 10437, 11431, 15729, 17227, 17913, 19619, 22791, 34293, 41797, 51681, 53179, 58857, 60563, 80017, 91271, 120589, 125391, 137333, 159537, 174731, 181689, 240051, 273813, 361767, 372253, 411999, 423941, 524193, 638897, 961331, 1116759, 1223117, 1271823, 1392949, 1916691, 2099233, 2883993, 2967587, 3669351, 4178847, 4472279, 6297699, 6480241, 8561819, 8902761, 9750643, 13416837, 14694631, 19440723, 25685457, 29251929, 44083893, 45361687, 68254501, 102862417, 136085061, 149045543, 204763503, 308587251, 317531809, 447136629, 952595427, 1043318801, 3129956403, 7303231607, 21909694821]

約数ペア:

[(1, 21909694821), (3, 7303231607), (7, 3129956403), (21, 1043318801), (23, 952595427), (49, 447136629), (69, 317531809), (71, 308587251), (107, 204763503), (147, 149045543), (161, 136085061), (213, 102862417), (321, 68254501), (483, 45361687), (497, 44083893), (749, 29251929), (853, 25685457), (1127, 19440723), (1491, 14694631), (1633, 13416837), (2247, 9750643), (2461, 8902761), (2559, 8561819), (3381, 6480241), (3479, 6297699), (4899, 4472279), (5243, 4178847), (5971, 3669351), (7383, 2967587), (7597, 2883993), (10437, 2099233), (11431, 1916691), (15729, 1392949), (17227, 1271823), (17913, 1223117), (19619, 1116759), (22791, 961331), (34293, 638897), (41797, 524193), (51681, 423941), (53179, 411999), (58857, 372253), (60563, 361767), (80017, 273813), (91271, 240051), (120589, 181689), (125391, 174731), (137333, 159537)]