19516668

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 47160960

約数和(自身を除く): 27644292

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 109, 129, 172, 218, 258, 327, 347, 436, 516, 654, 694, 1041, 1308, 1388, 2082, 4164, 4687, 9374, 14061, 14921, 18748, 28122, 29842, 37823, 44763, 56244, 59684, 75646, 89526, 113469, 151292, 179052, 226938, 453876, 1626389, 3252778, 4879167, 6505556, 9758334, 19516668]

約数ペア:

[(1, 19516668), (2, 9758334), (3, 6505556), (4, 4879167), (6, 3252778), (12, 1626389), (43, 453876), (86, 226938), (109, 179052), (129, 151292), (172, 113469), (218, 89526), (258, 75646), (327, 59684), (347, 56244), (436, 44763), (516, 37823), (654, 29842), (694, 28122), (1041, 18748), (1308, 14921), (1388, 14061), (2082, 9374), (4164, 4687)]