7131719217

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17873983}}^1$

素因数の和:17874012

約数の個数: 16

約数和(自身を含む): 11439349760

約数和(自身を除く): 4307630543

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 17873983, 53621949, 125117881, 339605677, 375353643, 1018817031, 2377239739, 7131719217]

約数ペア:

[(1, 7131719217), (3, 2377239739), (7, 1018817031), (19, 375353643), (21, 339605677), (57, 125117881), (133, 53621949), (399, 17873983)]