21545953

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8863}}^1$

素因数の和:8904

約数の個数: 16

約数和(自身を含む): 26804736

約数和(自身を除く): 5258783

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 8863, 97493, 115219, 150671, 1267409, 1657381, 1958723, 21545953]

約数ペア:

[(1, 21545953), (11, 1958723), (13, 1657381), (17, 1267409), (143, 150671), (187, 115219), (221, 97493), (2431, 8863)]