261884

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 537600

約数和(自身を除く): 275716

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 199, 329, 398, 658, 796, 1316, 1393, 2786, 5572, 9353, 18706, 37412, 65471, 130942, 261884]

約数ペア:

[(1, 261884), (2, 130942), (4, 65471), (7, 37412), (14, 18706), (28, 9353), (47, 5572), (94, 2786), (188, 1393), (199, 1316), (329, 796), (398, 658)]