20917744

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{5087}}^1$

素因数の和:5352

約数の個数: 20

約数和(自身を含む): 40693824

約数和(自身を除く): 19776080

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 5087, 10174, 20348, 40696, 81392, 1307359, 2614718, 5229436, 10458872, 20917744]

約数ペア:

[(1, 20917744), (2, 10458872), (4, 5229436), (8, 2614718), (16, 1307359), (257, 81392), (514, 40696), (1028, 20348), (2056, 10174), (4112, 5087)]