19911573

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{11831}}^1$

素因数の和:11865

約数の個数: 24

約数和(自身を含む): 33224256

約数和(自身を除く): 13312683

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683, 11831, 35493, 106479, 130141, 201127, 390423, 603381, 1171269, 1810143, 2212397, 6637191, 19911573]

約数ペア:

[(1, 19911573), (3, 6637191), (9, 2212397), (11, 1810143), (17, 1171269), (33, 603381), (51, 390423), (99, 201127), (153, 130141), (187, 106479), (561, 35493), (1683, 11831)]