21260576

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15451}}^1$

素因数の和:15504

約数の個数: 24

約数和(自身を含む): 42832944

約数和(自身を除く): 21572368

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15451, 30902, 61804, 123608, 247216, 494432, 664393, 1328786, 2657572, 5315144, 10630288, 21260576]

約数ペア:

[(1, 21260576), (2, 10630288), (4, 5315144), (8, 2657572), (16, 1328786), (32, 664393), (43, 494432), (86, 247216), (172, 123608), (344, 61804), (688, 30902), (1376, 15451)]