20215192004

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5194037}}^1$

素因数の和:5194187

約数の個数: 24

約数和(自身を含む): 40721257920

約数和(自身を除く): 20506065916

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5194037, 10388074, 20776148, 36358259, 72716518, 145433036, 721971143, 1443942286, 2887884572, 5053798001, 10107596002, 20215192004]

約数ペア:

[(1, 20215192004), (2, 10107596002), (4, 5053798001), (7, 2887884572), (14, 1443942286), (28, 721971143), (139, 145433036), (278, 72716518), (556, 36358259), (973, 20776148), (1946, 10388074), (3892, 5194037)]