20517464

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{2179}}^1$

素因数の和:2303

約数の個数: 32

約数和(自身を含む): 42379200

約数和(自身を除く): 21861736

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 107, 214, 428, 856, 1177, 2179, 2354, 4358, 4708, 8716, 9416, 17432, 23969, 47938, 95876, 191752, 233153, 466306, 932612, 1865224, 2564683, 5129366, 10258732, 20517464]

約数ペア:

[(1, 20517464), (2, 10258732), (4, 5129366), (8, 2564683), (11, 1865224), (22, 932612), (44, 466306), (88, 233153), (107, 191752), (214, 95876), (428, 47938), (856, 23969), (1177, 17432), (2179, 9416), (2354, 8716), (4358, 4708)]