21961064

素因数分解:

$2^3\times {\mathrm{661}}^1\times {\mathrm{4153}}^1$

素因数の和:4820

約数の個数: 16

約数和(自身を含む): 41249220

約数和(自身を除く): 19288156

約数列:

[1, 2, 4, 8, 661, 1322, 2644, 4153, 5288, 8306, 16612, 33224, 2745133, 5490266, 10980532, 21961064]

約数ペア:

[(1, 21961064), (2, 10980532), (4, 5490266), (8, 2745133), (661, 33224), (1322, 16612), (2644, 8306), (4153, 5288)]