28778939

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{1433}}^1$

素因数の和:1610

約数の個数: 16

約数和(自身を含む): 34874880

約数和(自身を除く): 6095941

約数列:

[1, 7, 19, 133, 151, 1057, 1433, 2869, 10031, 20083, 27227, 190589, 216383, 1514681, 4111277, 28778939]

約数ペア:

[(1, 28778939), (7, 4111277), (19, 1514681), (133, 216383), (151, 190589), (1057, 27227), (1433, 20083), (2869, 10031)]