21674205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{829}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 43505280

約数和(自身を除く): 21831075

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 83, 105, 249, 315, 415, 581, 747, 829, 1245, 1743, 2487, 2905, 3735, 4145, 5229, 5803, 7461, 8715, 12435, 17409, 26145, 29015, 37305, 52227, 68807, 87045, 206421, 261135, 344035, 481649, 619263, 1032105, 1444947, 2408245, 3096315, 4334841, 7224735, 21674205]

約数ペア:

[(1, 21674205), (3, 7224735), (5, 4334841), (7, 3096315), (9, 2408245), (15, 1444947), (21, 1032105), (35, 619263), (45, 481649), (63, 344035), (83, 261135), (105, 206421), (249, 87045), (315, 68807), (415, 52227), (581, 37305), (747, 29015), (829, 26145), (1245, 17409), (1743, 12435), (2487, 8715), (2905, 7461), (3735, 5803), (4145, 5229)]