19082668

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:558

約数の個数: 36

約数和(自身を含む): 37202760

約数和(自身を除く): 18120092

約数列:

[1, 2, 4, 11, 22, 44, 89, 121, 178, 242, 356, 443, 484, 886, 979, 1772, 1958, 3916, 4873, 9746, 10769, 19492, 21538, 39427, 43076, 53603, 78854, 107206, 157708, 214412, 433697, 867394, 1734788, 4770667, 9541334, 19082668]

約数ペア:

[(1, 19082668), (2, 9541334), (4, 4770667), (11, 1734788), (22, 867394), (44, 433697), (89, 214412), (121, 157708), (178, 107206), (242, 78854), (356, 53603), (443, 43076), (484, 39427), (886, 21538), (979, 19492), (1772, 10769), (1958, 9746), (3916, 4873)]