21407636

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1753}}^1$

素因数の和:1871

約数の個数: 24

約数和(自身を含む): 38896704

約数和(自身を除く): 17489068

約数列:

[1, 2, 4, 43, 71, 86, 142, 172, 284, 1753, 3053, 3506, 6106, 7012, 12212, 75379, 124463, 150758, 248926, 301516, 497852, 5351909, 10703818, 21407636]

約数ペア:

[(1, 21407636), (2, 10703818), (4, 5351909), (43, 497852), (71, 301516), (86, 248926), (142, 150758), (172, 124463), (284, 75379), (1753, 12212), (3053, 7012), (3506, 6106)]