21111188

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{25999}}^1$

素因数の和:26039

約数の個数: 24

約数和(自身を含む): 43680000

約数和(自身を除く): 22568812

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 25999, 51998, 103996, 181993, 363986, 727972, 753971, 1507942, 3015884, 5277797, 10555594, 21111188]

約数ペア:

[(1, 21111188), (2, 10555594), (4, 5277797), (7, 3015884), (14, 1507942), (28, 753971), (29, 727972), (58, 363986), (116, 181993), (203, 103996), (406, 51998), (812, 25999)]