12871663

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 15800400

約数和(自身を除く): 2928737

約数列:

[1, 7, 41, 43, 49, 149, 287, 301, 1043, 1763, 2009, 2107, 6109, 6407, 7301, 12341, 42763, 44849, 86387, 262687, 299341, 313943, 1838809, 12871663]

約数ペア:

[(1, 12871663), (7, 1838809), (41, 313943), (43, 299341), (49, 262687), (149, 86387), (287, 44849), (301, 42763), (1043, 12341), (1763, 7301), (2009, 6407), (2107, 6109)]