221939641

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3943}}^1$

素因数の和:4021

約数の個数: 32

約数和(自身を含む): 299870208

約数和(自身を除く): 77930567

約数列:

[1, 7, 11, 17, 43, 77, 119, 187, 301, 473, 731, 1309, 3311, 3943, 5117, 8041, 27601, 43373, 56287, 67031, 169549, 303611, 469217, 737341, 1186843, 1865039, 2882333, 5161387, 13055273, 20176331, 31705663, 221939641]

約数ペア:

[(1, 221939641), (7, 31705663), (11, 20176331), (17, 13055273), (43, 5161387), (77, 2882333), (119, 1865039), (187, 1186843), (301, 737341), (473, 469217), (731, 303611), (1309, 169549), (3311, 67031), (3943, 56287), (5117, 43373), (8041, 27601)]