19785728

素因数分解:

$2^{11}\times {\mathrm{9661}}^1$

素因数の和:9683

約数の個数: 24

約数和(自身を含む): 39565890

約数和(自身を除く): 19780162

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 9661, 19322, 38644, 77288, 154576, 309152, 618304, 1236608, 2473216, 4946432, 9892864, 19785728]

約数ペア:

[(1, 19785728), (2, 9892864), (4, 4946432), (8, 2473216), (16, 1236608), (32, 618304), (64, 309152), (128, 154576), (256, 77288), (512, 38644), (1024, 19322), (2048, 9661)]