20945998

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{1627}}^1$

素因数の和:1827

約数の個数: 16

約数和(自身を含む): 32410224

約数和(自身を除く): 11464226

約数列:

[1, 2, 41, 82, 157, 314, 1627, 3254, 6437, 12874, 66707, 133414, 255439, 510878, 10472999, 20945998]

約数ペア:

[(1, 20945998), (2, 10472999), (41, 510878), (82, 255439), (157, 133414), (314, 66707), (1627, 12874), (3254, 6437)]