21817532

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1249}}^1$

素因数の和:1661

約数の個数: 24

約数和(自身を含む): 41790000

約数和(自身を除く): 19972468

約数列:

[1, 2, 4, 11, 22, 44, 397, 794, 1249, 1588, 2498, 4367, 4996, 8734, 13739, 17468, 27478, 54956, 495853, 991706, 1983412, 5454383, 10908766, 21817532]

約数ペア:

[(1, 21817532), (2, 10908766), (4, 5454383), (11, 1983412), (22, 991706), (44, 495853), (397, 54956), (794, 27478), (1249, 17468), (1588, 13739), (2498, 8734), (4367, 4996)]