13211212

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2371}}^1$

素因数の和:2581

約数の個数: 24

約数和(自身を含む): 26566400

約数和(自身を除く): 13355188

約数列:

[1, 2, 4, 7, 14, 28, 199, 398, 796, 1393, 2371, 2786, 4742, 5572, 9484, 16597, 33194, 66388, 471829, 943658, 1887316, 3302803, 6605606, 13211212]

約数ペア:

[(1, 13211212), (2, 6605606), (4, 3302803), (7, 1887316), (14, 943658), (28, 471829), (199, 66388), (398, 33194), (796, 16597), (1393, 9484), (2371, 5572), (2786, 4742)]