19866385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4691}}^1$

素因数の和:4725

約数の個数: 24

約数和(自身を含む): 29953728

約数和(自身を除く): 10087343

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 4691, 23455, 32837, 51601, 164185, 258005, 361207, 567611, 1806035, 2838055, 3973277, 19866385]

約数ペア:

[(1, 19866385), (5, 3973277), (7, 2838055), (11, 1806035), (35, 567611), (55, 361207), (77, 258005), (121, 164185), (385, 51601), (605, 32837), (847, 23455), (4235, 4691)]