21801644

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:713

約数の個数: 24

約数和(自身を含む): 39060000

約数和(自身を除く): 17258356

約数列:

[1, 2, 4, 61, 122, 199, 244, 398, 449, 796, 898, 1796, 12139, 24278, 27389, 48556, 54778, 89351, 109556, 178702, 357404, 5450411, 10900822, 21801644]

約数ペア:

[(1, 21801644), (2, 10900822), (4, 5450411), (61, 357404), (122, 178702), (199, 109556), (244, 89351), (398, 54778), (449, 48556), (796, 27389), (898, 24278), (1796, 12139)]