20831728

素因数分解:

$2^4\times {\mathrm{389}}^1\times {\mathrm{3347}}^1$

素因数の和:3744

約数の個数: 20

約数和(自身を含む): 40477320

約数和(自身を除く): 19645592

約数列:

[1, 2, 4, 8, 16, 389, 778, 1556, 3112, 3347, 6224, 6694, 13388, 26776, 53552, 1301983, 2603966, 5207932, 10415864, 20831728]

約数ペア:

[(1, 20831728), (2, 10415864), (4, 5207932), (8, 2603966), (16, 1301983), (389, 53552), (778, 26776), (1556, 13388), (3112, 6694), (3347, 6224)]