21689568

素因数分解:

$2^5\times 3^2\times {\mathrm{127}}^1\times {\mathrm{593}}^1$

素因数の和:736

約数の個数: 72

約数和(自身を含む): 62270208

約数和(自身を除く): 40580640

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 127, 144, 254, 288, 381, 508, 593, 762, 1016, 1143, 1186, 1524, 1779, 2032, 2286, 2372, 3048, 3558, 4064, 4572, 4744, 5337, 6096, 7116, 9144, 9488, 10674, 12192, 14232, 18288, 18976, 21348, 28464, 36576, 42696, 56928, 75311, 85392, 150622, 170784, 225933, 301244, 451866, 602488, 677799, 903732, 1204976, 1355598, 1807464, 2409952, 2711196, 3614928, 5422392, 7229856, 10844784, 21689568]

約数ペア:

[(1, 21689568), (2, 10844784), (3, 7229856), (4, 5422392), (6, 3614928), (8, 2711196), (9, 2409952), (12, 1807464), (16, 1355598), (18, 1204976), (24, 903732), (32, 677799), (36, 602488), (48, 451866), (72, 301244), (96, 225933), (127, 170784), (144, 150622), (254, 85392), (288, 75311), (381, 56928), (508, 42696), (593, 36576), (762, 28464), (1016, 21348), (1143, 18976), (1186, 18288), (1524, 14232), (1779, 12192), (2032, 10674), (2286, 9488), (2372, 9144), (3048, 7116), (3558, 6096), (4064, 5337), (4572, 4744)]