19386459

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{1747}}^1$

素因数の和:1896

約数の個数: 20

約数和(自身を含む): 29188104

約数和(自身を除く): 9801645

約数列:

[1, 3, 9, 27, 81, 137, 411, 1233, 1747, 3699, 5241, 11097, 15723, 47169, 141507, 239339, 718017, 2154051, 6462153, 19386459]

約数ペア:

[(1, 19386459), (3, 6462153), (9, 2154051), (27, 718017), (81, 239339), (137, 141507), (411, 47169), (1233, 15723), (1747, 11097), (3699, 5241)]