19478739

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{3881}}^1$

素因数の和:4130

約数の個数: 16

約数和(自身を含む): 29813760

約数和(自身を除く): 10335021

約数列:

[1, 3, 7, 21, 239, 717, 1673, 3881, 5019, 11643, 27167, 81501, 927559, 2782677, 6492913, 19478739]

約数ペア:

[(1, 19478739), (3, 6492913), (7, 2782677), (21, 927559), (239, 81501), (717, 27167), (1673, 11643), (3881, 5019)]