20938404

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{12553}}^1$

素因数の和:12699

約数の個数: 24

約数和(自身を含む): 49211680

約数和(自身を除く): 28273276

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 12553, 25106, 37659, 50212, 75318, 150636, 1744867, 3489734, 5234601, 6979468, 10469202, 20938404]

約数ペア:

[(1, 20938404), (2, 10469202), (3, 6979468), (4, 5234601), (6, 3489734), (12, 1744867), (139, 150636), (278, 75318), (417, 50212), (556, 37659), (834, 25106), (1668, 12553)]