21379256

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3271}}^1$

素因数の和:3339

約数の個数: 32

約数和(自身を含む): 43190400

約数和(自身を除く): 21811144

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 344, 817, 1634, 3268, 3271, 6536, 6542, 13084, 26168, 62149, 124298, 140653, 248596, 281306, 497192, 562612, 1125224, 2672407, 5344814, 10689628, 21379256]

約数ペア:

[(1, 21379256), (2, 10689628), (4, 5344814), (8, 2672407), (19, 1125224), (38, 562612), (43, 497192), (76, 281306), (86, 248596), (152, 140653), (172, 124298), (344, 62149), (817, 26168), (1634, 13084), (3268, 6542), (3271, 6536)]