20994952

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{23}}^2\times {\mathrm{41}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 46335870

約数和(自身を除く): 25340918

約数列:

[1, 2, 4, 8, 11, 22, 23, 41, 44, 46, 82, 88, 92, 121, 164, 184, 242, 253, 328, 451, 484, 506, 529, 902, 943, 968, 1012, 1058, 1804, 1886, 2024, 2116, 2783, 3608, 3772, 4232, 4961, 5566, 5819, 7544, 9922, 10373, 11132, 11638, 19844, 20746, 21689, 22264, 23276, 39688, 41492, 43378, 46552, 64009, 82984, 86756, 114103, 128018, 173512, 228206, 238579, 256036, 456412, 477158, 512072, 912824, 954316, 1908632, 2624369, 5248738, 10497476, 20994952]

約数ペア:

[(1, 20994952), (2, 10497476), (4, 5248738), (8, 2624369), (11, 1908632), (22, 954316), (23, 912824), (41, 512072), (44, 477158), (46, 456412), (82, 256036), (88, 238579), (92, 228206), (121, 173512), (164, 128018), (184, 114103), (242, 86756), (253, 82984), (328, 64009), (451, 46552), (484, 43378), (506, 41492), (529, 39688), (902, 23276), (943, 22264), (968, 21689), (1012, 20746), (1058, 19844), (1804, 11638), (1886, 11132), (2024, 10373), (2116, 9922), (2783, 7544), (3608, 5819), (3772, 5566), (4232, 4961)]