15511216

素因数分解:

$2^4\times 7^1\times {\mathrm{138493}}^1$

素因数の和:138508

約数の個数: 20

約数和(自身を含む): 34346512

約数和(自身を除く): 18835296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 138493, 276986, 553972, 969451, 1107944, 1938902, 2215888, 3877804, 7755608, 15511216]

約数ペア:

[(1, 15511216), (2, 7755608), (4, 3877804), (7, 2215888), (8, 1938902), (14, 1107944), (16, 969451), (28, 553972), (56, 276986), (112, 138493)]