12940291

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3307}}^1$

素因数の和:3370

約数の個数: 16

約数和(自身を含む): 16301824

約数和(自身を除く): 3361533

約数列:

[1, 7, 13, 43, 91, 301, 559, 3307, 3913, 23149, 42991, 142201, 300937, 995407, 1848613, 12940291]

約数ペア:

[(1, 12940291), (7, 1848613), (13, 995407), (43, 300937), (91, 142201), (301, 42991), (559, 23149), (3307, 3913)]