21903662

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{90511}}^1$

素因数の和:90535

約数の個数: 12

約数和(自身を含む): 36114288

約数和(自身を除く): 14210626

約数列:

[1, 2, 11, 22, 121, 242, 90511, 181022, 995621, 1991242, 10951831, 21903662]

約数ペア:

[(1, 21903662), (2, 10951831), (11, 1991242), (22, 995621), (121, 181022), (242, 90511)]