20646892

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{13913}}^1$

素因数の和:13977

約数の個数: 24

約数和(自身を含む): 42075936

約数和(自身を除く): 21429044

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 13913, 27826, 55652, 97391, 194782, 389564, 737389, 1474778, 2949556, 5161723, 10323446, 20646892]

約数ペア:

[(1, 20646892), (2, 10323446), (4, 5161723), (7, 2949556), (14, 1474778), (28, 737389), (53, 389564), (106, 194782), (212, 97391), (371, 55652), (742, 27826), (1484, 13913)]