20904488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1709}}^1$

素因数の和:1865

約数の個数: 32

約数和(自身を含む): 43092000

約数和(自身を除く): 22187512

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 139, 278, 556, 1112, 1529, 1709, 3058, 3418, 6116, 6836, 12232, 13672, 18799, 37598, 75196, 150392, 237551, 475102, 950204, 1900408, 2613061, 5226122, 10452244, 20904488]

約数ペア:

[(1, 20904488), (2, 10452244), (4, 5226122), (8, 2613061), (11, 1900408), (22, 950204), (44, 475102), (88, 237551), (139, 150392), (278, 75196), (556, 37598), (1112, 18799), (1529, 13672), (1709, 12232), (3058, 6836), (3418, 6116)]