21661772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{1583}}^1$

素因数の和:1909

約数の個数: 24

約数和(自身を含む): 41513472

約数和(自身を除く): 19851700

約数列:

[1, 2, 4, 11, 22, 44, 311, 622, 1244, 1583, 3166, 3421, 6332, 6842, 13684, 17413, 34826, 69652, 492313, 984626, 1969252, 5415443, 10830886, 21661772]

約数ペア:

[(1, 21661772), (2, 10830886), (4, 5415443), (11, 1969252), (22, 984626), (44, 492313), (311, 69652), (622, 34826), (1244, 17413), (1583, 13684), (3166, 6842), (3421, 6332)]