16728831

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2027}}^1$

素因数の和:2171

約数の個数: 24

約数和(自身を含む): 27840384

約数和(自身を除く): 11111553

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2027, 2751, 6081, 8253, 14189, 18243, 42567, 127701, 265537, 796611, 1858759, 2389833, 5576277, 16728831]

約数ペア:

[(1, 16728831), (3, 5576277), (7, 2389833), (9, 1858759), (21, 796611), (63, 265537), (131, 127701), (393, 42567), (917, 18243), (1179, 14189), (2027, 8253), (2751, 6081)]