19956861

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{4831}}^1$

素因数の和:4863

約数の個数: 24

約数和(自身を含む): 31659264

約数和(自身を除く): 11702403

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 4831, 14493, 43479, 82127, 130437, 246381, 391311, 739143, 1173933, 2217429, 6652287, 19956861]

約数ペア:

[(1, 19956861), (3, 6652287), (9, 2217429), (17, 1173933), (27, 739143), (51, 391311), (81, 246381), (153, 130437), (243, 82127), (459, 43479), (1377, 14493), (4131, 4831)]