19995668

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{64921}}^1$

素因数の和:64943

約数の個数: 24

約数和(自身を含む): 43627584

約数和(自身を除く): 23631916

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 64921, 129842, 259684, 454447, 714131, 908894, 1428262, 1817788, 2856524, 4998917, 9997834, 19995668]

約数ペア:

[(1, 19995668), (2, 9997834), (4, 4998917), (7, 2856524), (11, 1817788), (14, 1428262), (22, 908894), (28, 714131), (44, 454447), (77, 259684), (154, 129842), (308, 64921)]