21511919

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8849}}^1$

素因数の和:8890

約数の個数: 16

約数和(自身を含む): 26762400

約数和(自身を除く): 5250481

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 8849, 97339, 115037, 150433, 1265407, 1654763, 1955629, 21511919]

約数ペア:

[(1, 21511919), (11, 1955629), (13, 1654763), (17, 1265407), (143, 150433), (187, 115037), (221, 97339), (2431, 8849)]