21191368

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{240811}}^1$

素因数の和:240828

約数の個数: 16

約数和(自身を含む): 43346160

約数和(自身を除く): 22154792

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 240811, 481622, 963244, 1926488, 2648921, 5297842, 10595684, 21191368]

約数ペア:

[(1, 21191368), (2, 10595684), (4, 5297842), (8, 2648921), (11, 1926488), (22, 963244), (44, 481622), (88, 240811)]