21586516

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17929}}^1$

素因数の和:17983

約数の個数: 24

約数和(自身を含む): 44179520

約数和(自身を除く): 22593004

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 17929, 35858, 71716, 125503, 251006, 502012, 770947, 1541894, 3083788, 5396629, 10793258, 21586516]

約数ペア:

[(1, 21586516), (2, 10793258), (4, 5396629), (7, 3083788), (14, 1541894), (28, 770947), (43, 502012), (86, 251006), (172, 125503), (301, 71716), (602, 35858), (1204, 17929)]