2890489

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:340

約数の個数: 16

約数和(自身を含む): 3527680

約数和(自身を除く): 637191

約数列:

[1, 7, 19, 103, 133, 211, 721, 1477, 1957, 4009, 13699, 21733, 28063, 152131, 412927, 2890489]

約数ペア:

[(1, 2890489), (7, 412927), (19, 152131), (103, 28063), (133, 21733), (211, 13699), (721, 4009), (1477, 1957)]