18823581

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10303}}^1$

素因数の和:10345

約数の個数: 24

約数和(自身を含む): 32148480

約数和(自身を除く): 13324899

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 10303, 30909, 72121, 92727, 216363, 298787, 649089, 896361, 2091509, 2689083, 6274527, 18823581]

約数ペア:

[(1, 18823581), (3, 6274527), (7, 2689083), (9, 2091509), (21, 896361), (29, 649089), (63, 298787), (87, 216363), (203, 92727), (261, 72121), (609, 30909), (1827, 10303)]