209745788

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{394259}}^1$

素因数の和:394289

約数の個数: 24

約数和(自身を含む): 441571200

約数和(自身を除く): 231825412

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 394259, 788518, 1577036, 2759813, 5519626, 7490921, 11039252, 14981842, 29963684, 52436447, 104872894, 209745788]

約数ペア:

[(1, 209745788), (2, 104872894), (4, 52436447), (7, 29963684), (14, 14981842), (19, 11039252), (28, 7490921), (38, 5519626), (76, 2759813), (133, 1577036), (266, 788518), (532, 394259)]