20004159

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22153}}^1$

素因数の和:22206

約数の個数: 16

約数和(自身を含む): 31192832

約数和(自身を除く): 11188673

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 22153, 66459, 155071, 465213, 952579, 2857737, 6668053, 20004159]

約数ペア:

[(1, 20004159), (3, 6668053), (7, 2857737), (21, 952579), (43, 465213), (129, 155071), (301, 66459), (903, 22153)]