399312386

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{72313}}^1$

素因数の和:72577

約数の個数: 16

約数和(自身を含む): 656032608

約数和(自身を除く): 256720222

約数列:

[1, 2, 11, 22, 251, 502, 2761, 5522, 72313, 144626, 795443, 1590886, 18150563, 36301126, 199656193, 399312386]

約数ペア:

[(1, 399312386), (2, 199656193), (11, 36301126), (22, 18150563), (251, 1590886), (502, 795443), (2761, 144626), (5522, 72313)]