20986916

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{1753}}^1$

素因数の和:1871

約数の個数: 24

約数和(自身を含む): 38160024

約数和(自身を除く): 17173108

約数列:

[1, 2, 4, 41, 73, 82, 146, 164, 292, 1753, 2993, 3506, 5986, 7012, 11972, 71873, 127969, 143746, 255938, 287492, 511876, 5246729, 10493458, 20986916]

約数ペア:

[(1, 20986916), (2, 10493458), (4, 5246729), (41, 511876), (73, 287492), (82, 255938), (146, 143746), (164, 127969), (292, 71873), (1753, 11972), (2993, 7012), (3506, 5986)]