18820396

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9467}}^1$

素因数の和:9549

約数の個数: 24

約数和(自身を含む): 38174976

約数和(自身を除く): 19354580

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 9467, 18934, 37868, 66269, 132538, 265076, 672157, 1344314, 2688628, 4705099, 9410198, 18820396]

約数ペア:

[(1, 18820396), (2, 9410198), (4, 4705099), (7, 2688628), (14, 1344314), (28, 672157), (71, 265076), (142, 132538), (284, 66269), (497, 37868), (994, 18934), (1988, 9467)]