20005424

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11471}}^1$

素因数の和:11588

約数の個数: 20

約数和(自身を含む): 39119520

約数和(自身を除く): 19114096

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11471, 22942, 45884, 91768, 183536, 1250339, 2500678, 5001356, 10002712, 20005424]

約数ペア:

[(1, 20005424), (2, 10002712), (4, 5001356), (8, 2500678), (16, 1250339), (109, 183536), (218, 91768), (436, 45884), (872, 22942), (1744, 11471)]