661011

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1$

素因数の和:1030

約数の個数: 16

約数和(自身を含む): 1005984

約数和(自身を除く): 344973

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 997, 2991, 12961, 16949, 38883, 50847, 220337, 661011]

約数ペア:

[(1, 661011), (3, 220337), (13, 50847), (17, 38883), (39, 16949), (51, 12961), (221, 2991), (663, 997)]