209938143

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1\times {\mathrm{3361}}^1$

素因数の和:3854

約数の個数: 16

約数和(自身を含む): 286603776

約数和(自身を除く): 76665633

約数列:

[1, 3, 47, 141, 443, 1329, 3361, 10083, 20821, 62463, 157967, 473901, 1488923, 4466769, 69979381, 209938143]

約数ペア:

[(1, 209938143), (3, 69979381), (47, 4466769), (141, 1488923), (443, 473901), (1329, 157967), (3361, 62463), (10083, 20821)]