19898866

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{11423}}^1$

素因数の和:11505

約数の個数: 16

約数和(自身を含む): 32626944

約数和(自身を除く): 12728078

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 11423, 22846, 148499, 296998, 765341, 1530682, 9949433, 19898866]

約数ペア:

[(1, 19898866), (2, 9949433), (13, 1530682), (26, 765341), (67, 296998), (134, 148499), (871, 22846), (1742, 11423)]