128591666

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{399353}}^1$

素因数の和:399385

約数の個数: 16

約数和(自身を含む): 230027904

約数和(自身を除く): 101436238

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 399353, 798706, 2795471, 5590942, 9185119, 18370238, 64295833, 128591666]

約数ペア:

[(1, 128591666), (2, 64295833), (7, 18370238), (14, 9185119), (23, 5590942), (46, 2795471), (161, 798706), (322, 399353)]