20999312

素因数分解:

$2^4\times {\mathrm{1061}}^1\times {\mathrm{1237}}^1$

素因数の和:2306

約数の個数: 20

約数和(自身を含む): 40757436

約数和(自身を除く): 19758124

約数列:

[1, 2, 4, 8, 16, 1061, 1237, 2122, 2474, 4244, 4948, 8488, 9896, 16976, 19792, 1312457, 2624914, 5249828, 10499656, 20999312]

約数ペア:

[(1, 20999312), (2, 10499656), (4, 5249828), (8, 2624914), (16, 1312457), (1061, 19792), (1237, 16976), (2122, 9896), (2474, 8488), (4244, 4948)]