21612388

素因数分解:

$2^2\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1193}}^1$

素因数の和:1851

約数の個数: 24

約数和(自身を含む): 43327872

約数和(自身を除く): 21715484

約数列:

[1, 2, 4, 7, 14, 28, 647, 1193, 1294, 2386, 2588, 4529, 4772, 8351, 9058, 16702, 18116, 33404, 771871, 1543742, 3087484, 5403097, 10806194, 21612388]

約数ペア:

[(1, 21612388), (2, 10806194), (4, 5403097), (7, 3087484), (14, 1543742), (28, 771871), (647, 33404), (1193, 18116), (1294, 16702), (2386, 9058), (2588, 8351), (4529, 4772)]