20995051

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 28435968

約数和(自身を除く): 7440917

約数列:

[1, 7, 11, 17, 43, 77, 119, 187, 301, 373, 473, 731, 1309, 2611, 3311, 4103, 5117, 6341, 8041, 16039, 28721, 44387, 56287, 69751, 112273, 176429, 272663, 488257, 1235003, 1908641, 2999293, 20995051]

約数ペア:

[(1, 20995051), (7, 2999293), (11, 1908641), (17, 1235003), (43, 488257), (77, 272663), (119, 176429), (187, 112273), (301, 69751), (373, 56287), (473, 44387), (731, 28721), (1309, 16039), (2611, 8041), (3311, 6341), (4103, 5117)]