21899548

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45247}}^1$

素因数の和:45273

約数の個数: 18

約数和(自身を含む): 42125888

約数和(自身を除く): 20226340

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45247, 90494, 180988, 497717, 995434, 1990868, 5474887, 10949774, 21899548]

約数ペア:

[(1, 21899548), (2, 10949774), (4, 5474887), (11, 1990868), (22, 995434), (44, 497717), (121, 180988), (242, 90494), (484, 45247)]