505379

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:146

約数の個数: 16

約数和(自身を含む): 625152

約数和(自身を除く): 119773

約数列:

[1, 7, 23, 43, 73, 161, 301, 511, 989, 1679, 3139, 6923, 11753, 21973, 72197, 505379]

約数ペア:

[(1, 505379), (7, 72197), (23, 21973), (43, 11753), (73, 6923), (161, 3139), (301, 1679), (511, 989)]