21476707

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5209}}^1$

素因数の和:5266

約数の個数: 16

約数和(自身を含む): 26675200

約数和(自身を除く): 5198493

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 5209, 36463, 98971, 161479, 692797, 1130353, 3068101, 21476707]

約数ペア:

[(1, 21476707), (7, 3068101), (19, 1130353), (31, 692797), (133, 161479), (217, 98971), (589, 36463), (4123, 5209)]