20940836

素因数分解:

$2^2\times 7^3\times {\mathrm{15263}}^1$

素因数の和:15288

約数の個数: 24

約数和(自身を含む): 42739200

約数和(自身を除く): 21798364

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15263, 30526, 61052, 106841, 213682, 427364, 747887, 1495774, 2991548, 5235209, 10470418, 20940836]

約数ペア:

[(1, 20940836), (2, 10470418), (4, 5235209), (7, 2991548), (14, 1495774), (28, 747887), (49, 427364), (98, 213682), (196, 106841), (343, 61052), (686, 30526), (1372, 15263)]