21810032

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{33247}}^1$

素因数の和:33296

約数の個数: 20

約数和(自身を含む): 43288896

約数和(自身を除く): 21478864

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 33247, 66494, 132988, 265976, 531952, 1363127, 2726254, 5452508, 10905016, 21810032]

約数ペア:

[(1, 21810032), (2, 10905016), (4, 5452508), (8, 2726254), (16, 1363127), (41, 531952), (82, 265976), (164, 132988), (328, 66494), (656, 33247)]