18673221

素因数分解:

$3^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1811}}^1$

素因数の和:2312

約数の個数: 16

約数和(自身を含む): 28528128

約数和(自身を除く): 9854907

約数列:

[1, 3, 7, 21, 491, 1473, 1811, 3437, 5433, 10311, 12677, 38031, 889201, 2667603, 6224407, 18673221]

約数ペア:

[(1, 18673221), (3, 6224407), (7, 2667603), (21, 889201), (491, 38031), (1473, 12677), (1811, 10311), (3437, 5433)]