21817456

素因数分解:

$2^4\times {\mathrm{631}}^1\times {\mathrm{2161}}^1$

素因数の和:2800

約数の個数: 20

約数和(自身を含む): 42357904

約数和(自身を除く): 20540448

約数列:

[1, 2, 4, 8, 16, 631, 1262, 2161, 2524, 4322, 5048, 8644, 10096, 17288, 34576, 1363591, 2727182, 5454364, 10908728, 21817456]

約数ペア:

[(1, 21817456), (2, 10908728), (4, 5454364), (8, 2727182), (16, 1363591), (631, 34576), (1262, 17288), (2161, 10096), (2524, 8644), (4322, 5048)]