438988

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{907}}^1$

素因数の和:933

約数の個数: 18

約数和(自身を含む): 845348

約数和(自身を除く): 406360

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 907, 1814, 3628, 9977, 19954, 39908, 109747, 219494, 438988]

約数ペア:

[(1, 438988), (2, 219494), (4, 109747), (11, 39908), (22, 19954), (44, 9977), (121, 3628), (242, 1814), (484, 907)]