19994499

素因数分解:

$3^3\times 7^3\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 36864000

約数和(自身を除く): 16869501

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 119, 127, 147, 153, 189, 343, 357, 381, 441, 459, 833, 889, 1029, 1071, 1143, 1323, 2159, 2499, 2667, 3087, 3213, 3429, 5831, 6223, 6477, 7497, 8001, 9261, 15113, 17493, 18669, 19431, 22491, 24003, 43561, 45339, 52479, 56007, 58293, 105791, 130683, 136017, 157437, 168021, 317373, 392049, 408051, 740537, 952119, 1176147, 2221611, 2856357, 6664833, 19994499]

約数ペア:

[(1, 19994499), (3, 6664833), (7, 2856357), (9, 2221611), (17, 1176147), (21, 952119), (27, 740537), (49, 408051), (51, 392049), (63, 317373), (119, 168021), (127, 157437), (147, 136017), (153, 130683), (189, 105791), (343, 58293), (357, 56007), (381, 52479), (441, 45339), (459, 43561), (833, 24003), (889, 22491), (1029, 19431), (1071, 18669), (1143, 17493), (1323, 15113), (2159, 9261), (2499, 8001), (2667, 7497), (3087, 6477), (3213, 6223), (3429, 5831)]