19825168

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112643}}^1$

素因数の和:112662

約数の個数: 20

約数和(自身を含む): 41903568

約数和(自身を除く): 22078400

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112643, 225286, 450572, 901144, 1239073, 1802288, 2478146, 4956292, 9912584, 19825168]

約数ペア:

[(1, 19825168), (2, 9912584), (4, 4956292), (8, 2478146), (11, 1802288), (16, 1239073), (22, 901144), (44, 450572), (88, 225286), (176, 112643)]