287663187

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{128021}}^1$

素因数の和:128138

約数の個数: 16

約数和(自身を含む): 442444032

約数和(自身を除く): 154780845

約数列:

[1, 3, 7, 21, 107, 321, 749, 2247, 128021, 384063, 896147, 2688441, 13698247, 41094741, 95887729, 287663187]

約数ペア:

[(1, 287663187), (3, 95887729), (7, 41094741), (21, 13698247), (107, 2688441), (321, 896147), (749, 384063), (2247, 128021)]