20996858672

素因数分解:

$2^4\times {\mathrm{691}}^1\times {\mathrm{1899137}}^1$

素因数の和:1899836

約数の個数: 20

約数和(自身を含む): 40740308376

約数和(自身を除く): 19743449704

約数列:

[1, 2, 4, 8, 16, 691, 1382, 2764, 5528, 11056, 1899137, 3798274, 7596548, 15193096, 30386192, 1312303667, 2624607334, 5249214668, 10498429336, 20996858672]

約数ペア:

[(1, 20996858672), (2, 10498429336), (4, 5249214668), (8, 2624607334), (16, 1312303667), (691, 30386192), (1382, 15193096), (2764, 7596548), (5528, 3798274), (11056, 1899137)]