21000401307

素因数分解:

$3^3\times {\mathrm{1069}}^1\times {\mathrm{727589}}^1$

素因数の和:728667

約数の個数: 16

約数和(自身を含む): 31140852000

約数和(自身を除く): 10140450693

約数列:

[1, 3, 9, 27, 1069, 3207, 9621, 28863, 727589, 2182767, 6548301, 19644903, 777792641, 2333377923, 7000133769, 21000401307]

約数ペア:

[(1, 21000401307), (3, 7000133769), (9, 2333377923), (27, 777792641), (1069, 19644903), (3207, 6548301), (9621, 2182767), (28863, 727589)]