19918017

素因数分解:

$3^2\times 7^1\times {\mathrm{467}}^1\times {\mathrm{677}}^1$

素因数の和:1157

約数の個数: 24

約数和(自身を含む): 32999616

約数和(自身を除く): 13081599

約数列:

[1, 3, 7, 9, 21, 63, 467, 677, 1401, 2031, 3269, 4203, 4739, 6093, 9807, 14217, 29421, 42651, 316159, 948477, 2213113, 2845431, 6639339, 19918017]

約数ペア:

[(1, 19918017), (3, 6639339), (7, 2845431), (9, 2213113), (21, 948477), (63, 316159), (467, 42651), (677, 29421), (1401, 14217), (2031, 9807), (3269, 6093), (4203, 4739)]