399736084

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{19207}}^1$

素因数の和:19276

約数の個数: 36

約数和(自身を含む): 786836512

約数和(自身を除く): 387100428

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 946, 1892, 5203, 10406, 19207, 20812, 38414, 76828, 211277, 422554, 825901, 845108, 1651802, 2324047, 3303604, 4648094, 9084911, 9296188, 18169822, 36339644, 99934021, 199868042, 399736084]

約数ペア:

[(1, 399736084), (2, 199868042), (4, 99934021), (11, 36339644), (22, 18169822), (43, 9296188), (44, 9084911), (86, 4648094), (121, 3303604), (172, 2324047), (242, 1651802), (473, 845108), (484, 825901), (946, 422554), (1892, 211277), (5203, 76828), (10406, 38414), (19207, 20812)]