20646493

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 4634147

約数列:

[1, 7, 41, 43, 49, 239, 287, 301, 1673, 1763, 2009, 2107, 9799, 10277, 11711, 12341, 68593, 71939, 86387, 421357, 480151, 503573, 2949499, 20646493]

約数ペア:

[(1, 20646493), (7, 2949499), (41, 503573), (43, 480151), (49, 421357), (239, 86387), (287, 71939), (301, 68593), (1673, 12341), (1763, 11711), (2009, 10277), (2107, 9799)]