20717564

素因数分解:

$2^2\times 7^1\times {\mathrm{503}}^1\times {\mathrm{1471}}^1$

素因数の和:1985

約数の個数: 24

約数和(自身を含む): 41545728

約数和(自身を除く): 20828164

約数列:

[1, 2, 4, 7, 14, 28, 503, 1006, 1471, 2012, 2942, 3521, 5884, 7042, 10297, 14084, 20594, 41188, 739913, 1479826, 2959652, 5179391, 10358782, 20717564]

約数ペア:

[(1, 20717564), (2, 10358782), (4, 5179391), (7, 2959652), (14, 1479826), (28, 739913), (503, 41188), (1006, 20594), (1471, 14084), (2012, 10297), (2942, 7042), (3521, 5884)]