2081681

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:272

約数の個数: 16

約数和(自身を含む): 2515968

約数和(自身を除く): 434287

約数列:

[1, 7, 31, 53, 181, 217, 371, 1267, 1643, 5611, 9593, 11501, 39277, 67151, 297383, 2081681]

約数ペア:

[(1, 2081681), (7, 297383), (31, 67151), (53, 39277), (181, 11501), (217, 9593), (371, 5611), (1267, 1643)]