21007052

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43403}}^1$

素因数の和:43429

約数の個数: 18

約数和(自身を含む): 40409124

約数和(自身を除く): 19402072

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43403, 86806, 173612, 477433, 954866, 1909732, 5251763, 10503526, 21007052]

約数ペア:

[(1, 21007052), (2, 10503526), (4, 5251763), (11, 1909732), (22, 954866), (44, 477433), (121, 173612), (242, 86806), (484, 43403)]