21076172272

素因数分解:

$2^4\times {\mathrm{977}}^1\times {\mathrm{1348271}}^1$

素因数の和:1349256

約数の個数: 20

約数和(自身を含む): 40876910496

約数和(自身を除く): 19800738224

約数列:

[1, 2, 4, 8, 16, 977, 1954, 3908, 7816, 15632, 1348271, 2696542, 5393084, 10786168, 21572336, 1317260767, 2634521534, 5269043068, 10538086136, 21076172272]

約数ペア:

[(1, 21076172272), (2, 10538086136), (4, 5269043068), (8, 2634521534), (16, 1317260767), (977, 21572336), (1954, 10786168), (3908, 5393084), (7816, 2696542), (15632, 1348271)]