19966331

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{2143}}^1$

素因数の和:2183

約数の個数: 16

約数和(自身を含む): 25110528

約数和(自身を除く): 5144197

約数列:

[1, 7, 11, 77, 121, 847, 1331, 2143, 9317, 15001, 23573, 165011, 259303, 1815121, 2852333, 19966331]

約数ペア:

[(1, 19966331), (7, 2852333), (11, 1815121), (77, 259303), (121, 165011), (847, 23573), (1331, 15001), (2143, 9317)]