19511847

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{1733}}^1$

素因数の和:1884

約数の個数: 20

約数和(自身を含む): 29373960

約数和(自身を除く): 9862113

約数列:

[1, 3, 9, 27, 81, 139, 417, 1251, 1733, 3753, 5199, 11259, 15597, 46791, 140373, 240887, 722661, 2167983, 6503949, 19511847]

約数ペア:

[(1, 19511847), (3, 6503949), (9, 2167983), (27, 722661), (81, 240887), (139, 140373), (417, 46791), (1251, 15597), (1733, 11259), (3753, 5199)]