20654116

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43391}}^1$

素因数の和:43419

約数の個数: 24

約数和(自身を含む): 43739136

約数和(自身を除く): 23085020

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 43391, 86782, 173564, 303737, 607474, 737647, 1214948, 1475294, 2950588, 5163529, 10327058, 20654116]

約数ペア:

[(1, 20654116), (2, 10327058), (4, 5163529), (7, 2950588), (14, 1475294), (17, 1214948), (28, 737647), (34, 607474), (68, 303737), (119, 173564), (238, 86782), (476, 43391)]