20817256

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{23873}}^1$

素因数の和:23988

約数の個数: 16

約数和(自身を含む): 39392100

約数和(自身を除く): 18574844

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 23873, 47746, 95492, 190984, 2602157, 5204314, 10408628, 20817256]

約数ペア:

[(1, 20817256), (2, 10408628), (4, 5204314), (8, 2602157), (109, 190984), (218, 95492), (436, 47746), (872, 23873)]