20816236

素因数分解:

$2^2\times 7^1\times {\mathrm{601}}^1\times {\mathrm{1237}}^1$

素因数の和:1849

約数の個数: 24

約数和(自身を含む): 41735456

約数和(自身を除く): 20919220

約数列:

[1, 2, 4, 7, 14, 28, 601, 1202, 1237, 2404, 2474, 4207, 4948, 8414, 8659, 16828, 17318, 34636, 743437, 1486874, 2973748, 5204059, 10408118, 20816236]

約数ペア:

[(1, 20816236), (2, 10408118), (4, 5204059), (7, 2973748), (14, 1486874), (28, 743437), (601, 34636), (1202, 17318), (1237, 16828), (2404, 8659), (2474, 8414), (4207, 4948)]