209901604

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{433681}}^1$

素因数の和:433707

約数の個数: 18

約数和(自身を含む): 403757942

約数和(自身を除く): 193856338

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 433681, 867362, 1734724, 4770491, 9540982, 19081964, 52475401, 104950802, 209901604]

約数ペア:

[(1, 209901604), (2, 104950802), (4, 52475401), (11, 19081964), (22, 9540982), (44, 4770491), (121, 1734724), (242, 867362), (484, 433681)]