21736328

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{353}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 42055200

約数和(自身を除く): 20318872

約数列:

[1, 2, 4, 8, 43, 86, 172, 179, 344, 353, 358, 706, 716, 1412, 1432, 2824, 7697, 15179, 15394, 30358, 30788, 60716, 61576, 63187, 121432, 126374, 252748, 505496, 2717041, 5434082, 10868164, 21736328]

約数ペア:

[(1, 21736328), (2, 10868164), (4, 5434082), (8, 2717041), (43, 505496), (86, 252748), (172, 126374), (179, 121432), (344, 63187), (353, 61576), (358, 60716), (706, 30788), (716, 30358), (1412, 15394), (1432, 15179), (2824, 7697)]