20994908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{673}}^1\times {\mathrm{709}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 40197360

約数和(自身を除く): 19202452

約数列:

[1, 2, 4, 11, 22, 44, 673, 709, 1346, 1418, 2692, 2836, 7403, 7799, 14806, 15598, 29612, 31196, 477157, 954314, 1908628, 5248727, 10497454, 20994908]

約数ペア:

[(1, 20994908), (2, 10497454), (4, 5248727), (11, 1908628), (22, 954314), (44, 477157), (673, 31196), (709, 29612), (1346, 15598), (1418, 14806), (2692, 7799), (2836, 7403)]