19665303

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6737}}^1$

素因数の和:6886

約数の個数: 16

約数和(自身を含む): 30186240

約数和(自身を除く): 10520937

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 6737, 20211, 47159, 141477, 936443, 2809329, 6555101, 19665303]

約数ペア:

[(1, 19665303), (3, 6555101), (7, 2809329), (21, 936443), (139, 141477), (417, 47159), (973, 20211), (2919, 6737)]