19995987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{14779}}^1$

素因数の和:14834

約数の個数: 16

約数和(自身を含む): 29796480

約数和(自身を除く): 9800493

約数列:

[1, 3, 11, 33, 41, 123, 451, 1353, 14779, 44337, 162569, 487707, 605939, 1817817, 6665329, 19995987]

約数ペア:

[(1, 19995987), (3, 6665329), (11, 1817817), (33, 605939), (41, 487707), (123, 162569), (451, 44337), (1353, 14779)]