20187928803

素因数分解:

$3^1\times 7^2\times {\mathrm{281}}^1\times {\mathrm{488729}}^1$

素因数の和:489027

約数の個数: 24

約数和(自身を含む): 31423384080

約数和(自身を除く): 11235455277

約数列:

[1, 3, 7, 21, 49, 147, 281, 843, 1967, 5901, 13769, 41307, 488729, 1466187, 3421103, 10263309, 23947721, 71843163, 137332849, 411998547, 961329943, 2883989829, 6729309601, 20187928803]

約数ペア:

[(1, 20187928803), (3, 6729309601), (7, 2883989829), (21, 961329943), (49, 411998547), (147, 137332849), (281, 71843163), (843, 23947721), (1967, 10263309), (5901, 3421103), (13769, 1466187), (41307, 488729)]