21144068

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{727}}^1$

素因数の和:1403

約数の個数: 24

約数和(自身を含む): 40482624

約数和(自身を除く): 19338556

約数列:

[1, 2, 4, 11, 22, 44, 661, 727, 1322, 1454, 2644, 2908, 7271, 7997, 14542, 15994, 29084, 31988, 480547, 961094, 1922188, 5286017, 10572034, 21144068]

約数ペア:

[(1, 21144068), (2, 10572034), (4, 5286017), (11, 1922188), (22, 961094), (44, 480547), (661, 31988), (727, 29084), (1322, 15994), (1454, 14542), (2644, 7997), (2908, 7271)]