128617426

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{399433}}^1$

素因数の和:399465

約数の個数: 16

約数和(自身を含む): 230073984

約数和(自身を除く): 101456558

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 399433, 798866, 2796031, 5592062, 9186959, 18373918, 64308713, 128617426]

約数ペア:

[(1, 128617426), (2, 64308713), (7, 18373918), (14, 9186959), (23, 5592062), (46, 2796031), (161, 798866), (322, 399433)]