39989859

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 68076288

約数和(自身を除く): 28086429

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 107, 111, 259, 273, 321, 481, 749, 777, 1369, 1391, 1443, 2247, 3367, 3959, 4107, 4173, 9583, 9737, 10101, 11877, 17797, 27713, 28749, 29211, 51467, 53391, 83139, 124579, 146483, 154401, 360269, 373737, 439449, 1025381, 1080807, 1904279, 3076143, 5712837, 13329953, 39989859]

約数ペア:

[(1, 39989859), (3, 13329953), (7, 5712837), (13, 3076143), (21, 1904279), (37, 1080807), (39, 1025381), (91, 439449), (107, 373737), (111, 360269), (259, 154401), (273, 146483), (321, 124579), (481, 83139), (749, 53391), (777, 51467), (1369, 29211), (1391, 28749), (1443, 27713), (2247, 17797), (3367, 11877), (3959, 10101), (4107, 9737), (4173, 9583)]