21149044

素因数分解:

$2^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2939}}^1$

素因数の和:3207

約数の個数: 24

約数和(自身を含む): 42477120

約数和(自身を除く): 21328076

約数列:

[1, 2, 4, 7, 14, 28, 257, 514, 1028, 1799, 2939, 3598, 5878, 7196, 11756, 20573, 41146, 82292, 755323, 1510646, 3021292, 5287261, 10574522, 21149044]

約数ペア:

[(1, 21149044), (2, 10574522), (4, 5287261), (7, 3021292), (14, 1510646), (28, 755323), (257, 82292), (514, 41146), (1028, 20573), (1799, 11756), (2939, 7196), (3598, 5878)]