19953189

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1499}}^1$

素因数の和:1554

約数の個数: 32

約数和(自身を含む): 32400000

約数和(自身を除く): 12446811

約数列:

[1, 3, 9, 17, 27, 29, 51, 87, 153, 261, 459, 493, 783, 1479, 1499, 4437, 4497, 13311, 13491, 25483, 40473, 43471, 76449, 130413, 229347, 391239, 688041, 739007, 1173717, 2217021, 6651063, 19953189]

約数ペア:

[(1, 19953189), (3, 6651063), (9, 2217021), (17, 1173717), (27, 739007), (29, 688041), (51, 391239), (87, 229347), (153, 130413), (261, 76449), (459, 43471), (493, 40473), (783, 25483), (1479, 13491), (1499, 13311), (4437, 4497)]