20797889

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:1040

約数の個数: 16

約数和(自身を含む): 24641280

約数和(自身を除く): 3843391

約数列:

[1, 7, 53, 61, 371, 427, 919, 3233, 6433, 22631, 48707, 56059, 340949, 392413, 2971127, 20797889]

約数ペア:

[(1, 20797889), (7, 2971127), (53, 392413), (61, 340949), (371, 56059), (427, 48707), (919, 22631), (3233, 6433)]