20685735

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{677}}^1$

素因数の和:792

約数の個数: 48

約数和(自身を含む): 41461056

約数和(自身を除く): 20775321

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 97, 105, 291, 315, 485, 677, 679, 873, 1455, 2031, 2037, 3385, 3395, 4365, 4739, 6093, 6111, 10155, 10185, 14217, 23695, 30465, 30555, 42651, 65669, 71085, 197007, 213255, 328345, 459683, 591021, 985035, 1379049, 2298415, 2955105, 4137147, 6895245, 20685735]

約数ペア:

[(1, 20685735), (3, 6895245), (5, 4137147), (7, 2955105), (9, 2298415), (15, 1379049), (21, 985035), (35, 591021), (45, 459683), (63, 328345), (97, 213255), (105, 197007), (291, 71085), (315, 65669), (485, 42651), (677, 30555), (679, 30465), (873, 23695), (1455, 14217), (2031, 10185), (2037, 10155), (3385, 6111), (3395, 6093), (4365, 4739)]