40381047

素因数分解:

$3^2\times 7^3\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 69222400

約数和(自身を除く): 28841353

約数列:

[1, 3, 7, 9, 21, 49, 63, 103, 127, 147, 309, 343, 381, 441, 721, 889, 927, 1029, 1143, 2163, 2667, 3087, 5047, 6223, 6489, 8001, 13081, 15141, 18669, 35329, 39243, 43561, 45423, 56007, 91567, 105987, 117729, 130683, 274701, 317961, 392049, 640969, 824103, 1922907, 4486783, 5768721, 13460349, 40381047]

約数ペア:

[(1, 40381047), (3, 13460349), (7, 5768721), (9, 4486783), (21, 1922907), (49, 824103), (63, 640969), (103, 392049), (127, 317961), (147, 274701), (309, 130683), (343, 117729), (381, 105987), (441, 91567), (721, 56007), (889, 45423), (927, 43561), (1029, 39243), (1143, 35329), (2163, 18669), (2667, 15141), (3087, 13081), (5047, 8001), (6223, 6489)]