19693168

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{111893}}^1$

素因数の和:111912

約数の個数: 20

約数和(自身を含む): 41624568

約数和(自身を除く): 21931400

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 111893, 223786, 447572, 895144, 1230823, 1790288, 2461646, 4923292, 9846584, 19693168]

約数ペア:

[(1, 19693168), (2, 9846584), (4, 4923292), (8, 2461646), (11, 1790288), (16, 1230823), (22, 895144), (44, 447572), (88, 223786), (176, 111893)]