21031839

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{45821}}^1$

素因数の和:45847

約数の個数: 16

約数和(自身を含む): 32991840

約数和(自身を除く): 11960001

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 45821, 137463, 412389, 778957, 1237167, 2336871, 7010613, 21031839]

約数ペア:

[(1, 21031839), (3, 7010613), (9, 2336871), (17, 1237167), (27, 778957), (51, 412389), (153, 137463), (459, 45821)]