20437846

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 37946880

約数和(自身を除く): 17509034

約数列:

[1, 2, 11, 13, 22, 23, 26, 46, 143, 169, 239, 253, 286, 299, 338, 478, 506, 598, 1859, 2629, 3107, 3289, 3718, 3887, 5258, 5497, 6214, 6578, 7774, 10994, 34177, 40391, 42757, 60467, 68354, 71461, 80782, 85514, 120934, 142922, 444301, 786071, 888602, 928993, 1572142, 1857986, 10218923, 20437846]

約数ペア:

[(1, 20437846), (2, 10218923), (11, 1857986), (13, 1572142), (22, 928993), (23, 888602), (26, 786071), (46, 444301), (143, 142922), (169, 120934), (239, 85514), (253, 80782), (286, 71461), (299, 68354), (338, 60467), (478, 42757), (506, 40391), (598, 34177), (1859, 10994), (2629, 7774), (3107, 6578), (3289, 6214), (3718, 5497), (3887, 5258)]