638642019

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{33721}}^1$

素因数の和:33890

約数の個数: 16

約数和(自身を含む): 874074240

約数和(自身を除く): 235432221

約数列:

[1, 3, 59, 107, 177, 321, 6313, 18939, 33721, 101163, 1989539, 3608147, 5968617, 10824441, 212880673, 638642019]

約数ペア:

[(1, 638642019), (3, 212880673), (59, 10824441), (107, 5968617), (177, 3608147), (321, 1989539), (6313, 101163), (18939, 33721)]