20839777

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:696

約数の個数: 16

約数和(自身を含む): 24796800

約数和(自身を除く): 3957023

約数列:

[1, 7, 29, 203, 251, 409, 1757, 2863, 7279, 11861, 50953, 83027, 102659, 718613, 2977111, 20839777]

約数ペア:

[(1, 20839777), (7, 2977111), (29, 718613), (203, 102659), (251, 83027), (409, 50953), (1757, 11861), (2863, 7279)]