20468668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{2689}}^1$

素因数の和:2877

約数の個数: 24

約数和(自身を含む): 39317040

約数和(自身を除く): 18848372

約数列:

[1, 2, 4, 11, 22, 44, 173, 346, 692, 1903, 2689, 3806, 5378, 7612, 10756, 29579, 59158, 118316, 465197, 930394, 1860788, 5117167, 10234334, 20468668]

約数ペア:

[(1, 20468668), (2, 10234334), (4, 5117167), (11, 1860788), (22, 930394), (44, 465197), (173, 118316), (346, 59158), (692, 29579), (1903, 10756), (2689, 7612), (3806, 5378)]