19798834

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20929}}^1$

素因数の和:20985

約数の個数: 16

約数和(自身を含む): 33153120

約数和(自身を除く): 13354286

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 20929, 41858, 230219, 460438, 899947, 1799894, 9899417, 19798834]

約数ペア:

[(1, 19798834), (2, 9899417), (11, 1799894), (22, 899947), (43, 460438), (86, 230219), (473, 41858), (946, 20929)]