20479172

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{17839}}^1$

素因数の和:17891

約数の個数: 24

約数和(自身を含む): 41959680

約数和(自身を除く): 21480508

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 17839, 35678, 71356, 124873, 249746, 499492, 731399, 1462798, 2925596, 5119793, 10239586, 20479172]

約数ペア:

[(1, 20479172), (2, 10239586), (4, 5119793), (7, 2925596), (14, 1462798), (28, 731399), (41, 499492), (82, 249746), (164, 124873), (287, 71356), (574, 35678), (1148, 17839)]