19713540807

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{1633403}}^1$

素因数の和:1633564

約数の個数: 20

約数和(自身を含む): 29646282600

約数和(自身を除く): 9932741793

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 4023, 12069, 1633403, 4900209, 14700627, 44101881, 132305643, 243377047, 730131141, 2190393423, 6571180269, 19713540807]

約数ペア:

[(1, 19713540807), (3, 6571180269), (9, 2190393423), (27, 730131141), (81, 243377047), (149, 132305643), (447, 44101881), (1341, 14700627), (4023, 4900209), (12069, 1633403)]