20205571

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:402

約数の個数: 16

約数和(自身を含む): 22163328

約数和(自身を除く): 1957757

約数列:

[1, 17, 43, 131, 211, 731, 2227, 3587, 5633, 9073, 27641, 95761, 154241, 469897, 1188563, 20205571]

約数ペア:

[(1, 20205571), (17, 1188563), (43, 469897), (131, 154241), (211, 95761), (731, 27641), (2227, 9073), (3587, 5633)]