209428516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{4759739}}^1$

素因数の和:4759754

約数の個数: 12

約数和(自身を含む): 399818160

約数和(自身を除く): 190389644

約数列:

[1, 2, 4, 11, 22, 44, 4759739, 9519478, 19038956, 52357129, 104714258, 209428516]

約数ペア:

[(1, 209428516), (2, 104714258), (4, 52357129), (11, 19038956), (22, 9519478), (44, 4759739)]