21719656

素因数分解:

$2^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1949}}^1$

素因数の和:2161

約数の個数: 32

約数和(自身を含む): 46800000

約数和(自身を除く): 25080344

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 199, 398, 796, 1393, 1592, 1949, 2786, 3898, 5572, 7796, 11144, 13643, 15592, 27286, 54572, 109144, 387851, 775702, 1551404, 2714957, 3102808, 5429914, 10859828, 21719656]

約数ペア:

[(1, 21719656), (2, 10859828), (4, 5429914), (7, 3102808), (8, 2714957), (14, 1551404), (28, 775702), (56, 387851), (199, 109144), (398, 54572), (796, 27286), (1393, 15592), (1592, 13643), (1949, 11144), (2786, 7796), (3898, 5572)]