21059374

素因数分解:

$2^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{7559}}^1$

素因数の和:7767

約数の個数: 16

約数和(自身を含む): 36288000

約数和(自身を除く): 15228626

約数列:

[1, 2, 7, 14, 199, 398, 1393, 2786, 7559, 15118, 52913, 105826, 1504241, 3008482, 10529687, 21059374]

約数ペア:

[(1, 21059374), (2, 10529687), (7, 3008482), (14, 1504241), (199, 105826), (398, 52913), (1393, 15118), (2786, 7559)]