20659694

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21839}}^1$

素因数の和:21895

約数の個数: 16

約数和(自身を含む): 34594560

約数和(自身を除く): 13934866

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 21839, 43678, 240229, 480458, 939077, 1878154, 10329847, 20659694]

約数ペア:

[(1, 20659694), (2, 10329847), (11, 1878154), (22, 939077), (43, 480458), (86, 240229), (473, 43678), (946, 21839)]