21240153

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2939}}^1$

素因数の和:3029

約数の個数: 24

約数和(自身を含む): 33939360

約数和(自身を除く): 12699207

約数列:

[1, 3, 9, 11, 33, 73, 99, 219, 657, 803, 2409, 2939, 7227, 8817, 26451, 32329, 96987, 214547, 290961, 643641, 1930923, 2360017, 7080051, 21240153]

約数ペア:

[(1, 21240153), (3, 7080051), (9, 2360017), (11, 1930923), (33, 643641), (73, 290961), (99, 214547), (219, 96987), (657, 32329), (803, 26451), (2409, 8817), (2939, 7227)]