20098561

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{433}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 24304000

約数和(自身を除く): 4205439

約数列:

[1, 7, 19, 133, 349, 433, 2443, 3031, 6631, 8227, 46417, 57589, 151117, 1057819, 2871223, 20098561]

約数ペア:

[(1, 20098561), (7, 2871223), (19, 1057819), (133, 151117), (349, 57589), (433, 46417), (2443, 8227), (3031, 6631)]