20990478

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{10831}}^1$

素因数の和:10872

約数の個数: 32

約数和(自身を含む): 46794240

約数和(自身を除く): 25803762

約数列:

[1, 2, 3, 6, 17, 19, 34, 38, 51, 57, 102, 114, 323, 646, 969, 1938, 10831, 21662, 32493, 64986, 184127, 205789, 368254, 411578, 552381, 617367, 1104762, 1234734, 3498413, 6996826, 10495239, 20990478]

約数ペア:

[(1, 20990478), (2, 10495239), (3, 6996826), (6, 3498413), (17, 1234734), (19, 1104762), (34, 617367), (38, 552381), (51, 411578), (57, 368254), (102, 205789), (114, 184127), (323, 64986), (646, 32493), (969, 21662), (1938, 10831)]