20546841

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{7039}}^1$

素因数の和:7188

約数の個数: 16

約数和(自身を含む): 31539200

約数和(自身を除く): 10992359

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 7039, 21117, 49273, 147819, 978421, 2935263, 6848947, 20546841]

約数ペア:

[(1, 20546841), (3, 6848947), (7, 2935263), (21, 978421), (139, 147819), (417, 49273), (973, 21117), (2919, 7039)]