19756893

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{7561}}^1$

素因数の和:7644

約数の個数: 16

約数和(自身を含む): 28796096

約数和(自身を除く): 9039203

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 7561, 22683, 98293, 294879, 506587, 1519761, 6585631, 19756893]

約数ペア:

[(1, 19756893), (3, 6585631), (13, 1519761), (39, 506587), (67, 294879), (201, 98293), (871, 22683), (2613, 7561)]