213996897

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{24691}}^1$

素因数の和:24810

約数の個数: 20

約数和(自身を含む): 322675056

約数和(自身を除く): 108678159

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 2889, 8667, 24691, 74073, 222219, 666657, 1999971, 2641937, 7925811, 23777433, 71332299, 213996897]

約数ペア:

[(1, 213996897), (3, 71332299), (9, 23777433), (27, 7925811), (81, 2641937), (107, 1999971), (321, 666657), (963, 222219), (2889, 74073), (8667, 24691)]