208512981

素因数分解:

$3^3\times {\mathrm{191}}^1\times {\mathrm{40433}}^1$

素因数の和:40633

約数の個数: 16

約数和(自身を含む): 310533120

約数和(自身を除く): 102020139

約数列:

[1, 3, 9, 27, 191, 573, 1719, 5157, 40433, 121299, 363897, 1091691, 7722703, 23168109, 69504327, 208512981]

約数ペア:

[(1, 208512981), (3, 69504327), (9, 23168109), (27, 7722703), (191, 1091691), (573, 363897), (1719, 121299), (5157, 40433)]