801988

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{1657}}^1$

素因数の和:1683

約数の個数: 18

約数和(自身を含む): 1543598

約数和(自身を除く): 741610

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1657, 3314, 6628, 18227, 36454, 72908, 200497, 400994, 801988]

約数ペア:

[(1, 801988), (2, 400994), (4, 200497), (11, 72908), (22, 36454), (44, 18227), (121, 6628), (242, 3314), (484, 1657)]