218219281

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{10211}}^1$

素因数の和:10332

約数の個数: 16

約数和(自身を含む): 258812928

約数和(自身を除く): 40593647

約数列:

[1, 7, 43, 71, 301, 497, 3053, 10211, 21371, 71477, 439073, 724981, 3073511, 5074867, 31174183, 218219281]

約数ペア:

[(1, 218219281), (7, 31174183), (43, 5074867), (71, 3073511), (301, 724981), (497, 439073), (3053, 71477), (10211, 21371)]