21872727

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47653}}^1$

素因数の和:47679

約数の個数: 16

約数和(自身を含む): 34310880

約数和(自身を除く): 12438153

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47653, 142959, 428877, 810101, 1286631, 2430303, 7290909, 21872727]

約数ペア:

[(1, 21872727), (3, 7290909), (9, 2430303), (17, 1286631), (27, 810101), (51, 428877), (153, 142959), (459, 47653)]