20640354

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{4349}}^1$

素因数の和:4474

約数の個数: 32

約数和(自身を含む): 47606400

約数和(自身を除く): 26966046

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 113, 226, 339, 678, 791, 1582, 2373, 4349, 4746, 8698, 13047, 26094, 30443, 60886, 91329, 182658, 491437, 982874, 1474311, 2948622, 3440059, 6880118, 10320177, 20640354]

約数ペア:

[(1, 20640354), (2, 10320177), (3, 6880118), (6, 3440059), (7, 2948622), (14, 1474311), (21, 982874), (42, 491437), (113, 182658), (226, 91329), (339, 60886), (678, 30443), (791, 26094), (1582, 13047), (2373, 8698), (4349, 4746)]