388741143

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{638327}}^1$

素因数の和:638366

約数の個数: 16

約数和(自身を含む): 612794880

約数和(自身を除く): 224053737

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 638327, 1914981, 4468289, 13404867, 18511483, 55534449, 129580381, 388741143]

約数ペア:

[(1, 388741143), (3, 129580381), (7, 55534449), (21, 18511483), (29, 13404867), (87, 4468289), (203, 1914981), (609, 638327)]