18064641

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{20981}}^1$

素因数の和:21032

約数の個数: 16

約数和(自身を含む): 28199808

約数和(自身を除く): 10135167

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 20981, 62943, 146867, 440601, 860221, 2580663, 6021547, 18064641]

約数ペア:

[(1, 18064641), (3, 6021547), (7, 2580663), (21, 860221), (41, 440601), (123, 146867), (287, 62943), (861, 20981)]