18158427

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6703}}^1$

素因数の和:6759

約数の個数: 24

約数和(自身を含む): 30677504

約数和(自身を除く): 12519077

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 6703, 20109, 46921, 60327, 140763, 288229, 422289, 864687, 2017603, 2594061, 6052809, 18158427]

約数ペア:

[(1, 18158427), (3, 6052809), (7, 2594061), (9, 2017603), (21, 864687), (43, 422289), (63, 288229), (129, 140763), (301, 60327), (387, 46921), (903, 20109), (2709, 6703)]