28508711721

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19120531}}^1$

素因数の和:19120612

約数の個数: 16

約数和(自身を含む): 44053705728

約数和(自身を除く): 15544994007

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 19120531, 57361593, 133843717, 401531151, 1357557701, 4072673103, 9502903907, 28508711721]

約数ペア:

[(1, 28508711721), (3, 9502903907), (7, 4072673103), (21, 1357557701), (71, 401531151), (213, 133843717), (497, 57361593), (1491, 19120531)]