217588

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:439

約数の個数: 24

約数和(自身を含む): 459200

約数和(自身を除く): 241612

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 409, 532, 818, 1636, 2863, 5726, 7771, 11452, 15542, 31084, 54397, 108794, 217588]

約数ペア:

[(1, 217588), (2, 108794), (4, 54397), (7, 31084), (14, 15542), (19, 11452), (28, 7771), (38, 5726), (76, 2863), (133, 1636), (266, 818), (409, 532)]