20561174

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{4993}}^1$

素因数の和:5095

約数の個数: 16

約数和(自身を含む): 32361120

約数和(自身を除く): 11799946

約数列:

[1, 2, 29, 58, 71, 142, 2059, 4118, 4993, 9986, 144797, 289594, 354503, 709006, 10280587, 20561174]

約数ペア:

[(1, 20561174), (2, 10280587), (29, 709006), (58, 354503), (71, 289594), (142, 144797), (2059, 9986), (4118, 4993)]