19661607

素因数分解:

$3^2\times 7^1\times {\mathrm{312089}}^1$

素因数の和:312102

約数の個数: 12

約数和(自身を含む): 32457360

約数和(自身を除く): 12795753

約数列:

[1, 3, 7, 9, 21, 63, 312089, 936267, 2184623, 2808801, 6553869, 19661607]

約数ペア:

[(1, 19661607), (3, 6553869), (7, 2808801), (9, 2184623), (21, 936267), (63, 312089)]