19798604

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5087}}^1$

素因数の和:5237

約数の個数: 24

約数和(自身を含む): 39889920

約数和(自身を除く): 20091316

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5087, 10174, 20348, 35609, 71218, 142436, 707093, 1414186, 2828372, 4949651, 9899302, 19798604]

約数ペア:

[(1, 19798604), (2, 9899302), (4, 4949651), (7, 2828372), (14, 1414186), (28, 707093), (139, 142436), (278, 71218), (556, 35609), (973, 20348), (1946, 10174), (3892, 5087)]