20804732

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{1153}}^1$

素因数の和:1517

約数の個数: 24

約数和(自身を含む): 39356016

約数和(自身を除く): 18551284

約数列:

[1, 2, 4, 13, 26, 52, 347, 694, 1153, 1388, 2306, 4511, 4612, 9022, 14989, 18044, 29978, 59956, 400091, 800182, 1600364, 5201183, 10402366, 20804732]

約数ペア:

[(1, 20804732), (2, 10402366), (4, 5201183), (13, 1600364), (26, 800182), (52, 400091), (347, 59956), (694, 29978), (1153, 18044), (1388, 14989), (2306, 9022), (4511, 4612)]