19393913

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4129}}^1$

素因数の和:4208

約数の個数: 16

約数和(自身を含む): 24581760

約数和(自身を除く): 5187847

約数列:

[1, 7, 11, 61, 77, 427, 671, 4129, 4697, 28903, 45419, 251869, 317933, 1763083, 2770559, 19393913]

約数ペア:

[(1, 19393913), (7, 2770559), (11, 1763083), (61, 317933), (77, 251869), (427, 45419), (671, 28903), (4129, 4697)]