19997109

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2767}}^1$

素因数の和:2857

約数の個数: 24

約数和(自身を含む): 31953792

約数和(自身を除く): 11956683

約数列:

[1, 3, 9, 11, 33, 73, 99, 219, 657, 803, 2409, 2767, 7227, 8301, 24903, 30437, 91311, 201991, 273933, 605973, 1817919, 2221901, 6665703, 19997109]

約数ペア:

[(1, 19997109), (3, 6665703), (9, 2221901), (11, 1817919), (33, 605973), (73, 273933), (99, 201991), (219, 91311), (657, 30437), (803, 24903), (2409, 8301), (2767, 7227)]