21736816

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{13451}}^1$

素因数の和:13560

約数の個数: 20

約数和(自身を含む): 42535224

約数和(自身を除く): 20798408

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 13451, 26902, 53804, 107608, 215216, 1358551, 2717102, 5434204, 10868408, 21736816]

約数ペア:

[(1, 21736816), (2, 10868408), (4, 5434204), (8, 2717102), (16, 1358551), (101, 215216), (202, 107608), (404, 53804), (808, 26902), (1616, 13451)]