19868728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{225781}}^1$

素因数の和:225798

約数の個数: 16

約数和(自身を含む): 40640760

約数和(自身を除く): 20772032

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 225781, 451562, 903124, 1806248, 2483591, 4967182, 9934364, 19868728]

約数ペア:

[(1, 19868728), (2, 9934364), (4, 4967182), (8, 2483591), (11, 1806248), (22, 903124), (44, 451562), (88, 225781)]