27777141

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 21989259

約数列:

[1, 3, 7, 9, 21, 27, 47, 53, 59, 63, 141, 159, 177, 189, 329, 371, 413, 423, 477, 531, 987, 1113, 1239, 1269, 1431, 1593, 2491, 2773, 2961, 3127, 3339, 3717, 7473, 8319, 8883, 9381, 10017, 11151, 17437, 19411, 21889, 22419, 24957, 28143, 52311, 58233, 65667, 67257, 74871, 84429, 146969, 156933, 174699, 197001, 440907, 470799, 524097, 591003, 1028783, 1322721, 3086349, 3968163, 9259047, 27777141]

約数ペア:

[(1, 27777141), (3, 9259047), (7, 3968163), (9, 3086349), (21, 1322721), (27, 1028783), (47, 591003), (53, 524097), (59, 470799), (63, 440907), (141, 197001), (159, 174699), (177, 156933), (189, 146969), (329, 84429), (371, 74871), (413, 67257), (423, 65667), (477, 58233), (531, 52311), (987, 28143), (1113, 24957), (1239, 22419), (1269, 21889), (1431, 19411), (1593, 17437), (2491, 11151), (2773, 10017), (2961, 9381), (3127, 8883), (3339, 8319), (3717, 7473)]