209519992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{125311}}^1$

素因数の和:125347

約数の個数: 32

約数和(自身を含む): 451123200

約数和(自身を除く): 241603208

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 125311, 250622, 501244, 1002488, 1378421, 2380909, 2756842, 4761818, 5513684, 9523636, 11027368, 19047272, 26189999, 52379998, 104759996, 209519992]

約数ペア:

[(1, 209519992), (2, 104759996), (4, 52379998), (8, 26189999), (11, 19047272), (19, 11027368), (22, 9523636), (38, 5513684), (44, 4761818), (76, 2756842), (88, 2380909), (152, 1378421), (209, 1002488), (418, 501244), (836, 250622), (1672, 125311)]