263626

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:557

約数の個数: 16

約数和(自身を含む): 451008

約数和(自身を除く): 187382

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 521, 1042, 5731, 11462, 11983, 23966, 131813, 263626]

約数ペア:

[(1, 263626), (2, 131813), (11, 23966), (22, 11983), (23, 11462), (46, 5731), (253, 1042), (506, 521)]