20940854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1\times {\mathrm{1667}}^1$

素因数の和:2251

約数の個数: 16

約数和(自身を含む): 34347456

約数和(自身を除く): 13406602

約数列:

[1, 2, 11, 22, 571, 1142, 1667, 3334, 6281, 12562, 18337, 36674, 951857, 1903714, 10470427, 20940854]

約数ペア:

[(1, 20940854), (2, 10470427), (11, 1903714), (22, 951857), (571, 36674), (1142, 18337), (1667, 12562), (3334, 6281)]