28783557

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{12641}}^1$

素因数の和:12681

約数の個数: 24

約数和(自身を含む): 47331648

約数和(自身を除く): 18548091

約数列:

[1, 3, 9, 11, 23, 33, 69, 99, 207, 253, 759, 2277, 12641, 37923, 113769, 139051, 290743, 417153, 872229, 1251459, 2616687, 3198173, 9594519, 28783557]

約数ペア:

[(1, 28783557), (3, 9594519), (9, 3198173), (11, 2616687), (23, 1251459), (33, 872229), (69, 417153), (99, 290743), (207, 139051), (253, 113769), (759, 37923), (2277, 12641)]