209540419

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 262918656

約数和(自身を除く): 53378237

約数列:

[1, 11, 17, 23, 43, 103, 121, 187, 253, 391, 473, 731, 989, 1133, 1751, 2057, 2369, 2783, 4301, 4429, 5203, 8041, 10879, 12463, 16813, 19261, 26059, 40273, 47311, 48719, 75293, 88451, 101867, 119669, 184943, 211871, 286649, 443003, 535909, 828223, 1120537, 1731739, 2034373, 4873033, 9110453, 12325907, 19049129, 209540419]

約数ペア:

[(1, 209540419), (11, 19049129), (17, 12325907), (23, 9110453), (43, 4873033), (103, 2034373), (121, 1731739), (187, 1120537), (253, 828223), (391, 535909), (473, 443003), (731, 286649), (989, 211871), (1133, 184943), (1751, 119669), (2057, 101867), (2369, 88451), (2783, 75293), (4301, 48719), (4429, 47311), (5203, 40273), (8041, 26059), (10879, 19261), (12463, 16813)]