19870774

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{18433}}^1$

素因数の和:18460

約数の個数: 24

約数和(自身を含む): 37826568

約数和(自身を除く): 17955794

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 18433, 36866, 129031, 202763, 258062, 405526, 903217, 1419341, 1806434, 2838682, 9935387, 19870774]

約数ペア:

[(1, 19870774), (2, 9935387), (7, 2838682), (11, 1806434), (14, 1419341), (22, 903217), (49, 405526), (77, 258062), (98, 202763), (154, 129031), (539, 36866), (1078, 18433)]