21475564

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44371}}^1$

素因数の和:44397

約数の個数: 18

約数和(自身を含む): 41310332

約数和(自身を除く): 19834768

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44371, 88742, 177484, 488081, 976162, 1952324, 5368891, 10737782, 21475564]

約数ペア:

[(1, 21475564), (2, 10737782), (4, 5368891), (11, 1952324), (22, 976162), (44, 488081), (121, 177484), (242, 88742), (484, 44371)]