19709217

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{66361}}^1$

素因数の和:66381

約数の個数: 16

約数和(自身を含む): 31853760

約数和(自身を除く): 12144543

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 66361, 199083, 597249, 729971, 1791747, 2189913, 6569739, 19709217]

約数ペア:

[(1, 19709217), (3, 6569739), (9, 2189913), (11, 1791747), (27, 729971), (33, 597249), (99, 199083), (297, 66361)]