20656211

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:386

約数の個数: 16

約数和(自身を含む): 22535040

約数和(自身を除く): 1878829

約数列:

[1, 19, 43, 131, 193, 817, 2489, 3667, 5633, 8299, 25283, 107027, 157681, 480377, 1087169, 20656211]

約数ペア:

[(1, 20656211), (19, 1087169), (43, 480377), (131, 157681), (193, 107027), (817, 25283), (2489, 8299), (3667, 5633)]