257803414

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{165047}}^1$

素因数の和:165131

約数の個数: 16

約数和(自身を含む): 427804416

約数和(自身を除く): 170001002

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 165047, 330094, 1815517, 3631034, 11718337, 23436674, 128901707, 257803414]

約数ペア:

[(1, 257803414), (2, 128901707), (11, 23436674), (22, 11718337), (71, 3631034), (142, 1815517), (781, 330094), (1562, 165047)]