18893049

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47351}}^1$

素因数の和:47380

約数の個数: 16

約数和(自身を含む): 30305280

約数和(自身を除く): 11412231

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 47351, 142053, 331457, 899669, 994371, 2699007, 6297683, 18893049]

約数ペア:

[(1, 18893049), (3, 6297683), (7, 2699007), (19, 994371), (21, 899669), (57, 331457), (133, 142053), (399, 47351)]