21887056

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8713}}^1$

素因数の和:8878

約数の個数: 20

約数和(自身を含む): 42681172

約数和(自身を除く): 20794116

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8713, 17426, 34852, 69704, 139408, 1367941, 2735882, 5471764, 10943528, 21887056]

約数ペア:

[(1, 21887056), (2, 10943528), (4, 5471764), (8, 2735882), (16, 1367941), (157, 139408), (314, 69704), (628, 34852), (1256, 17426), (2512, 8713)]