278522211

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{87011}}^1$

素因数の和:87122

約数の個数: 16

約数和(自身を含む): 409304448

約数和(自身を除く): 130782237

約数列:

[1, 3, 11, 33, 97, 291, 1067, 3201, 87011, 261033, 957121, 2871363, 8440067, 25320201, 92840737, 278522211]

約数ペア:

[(1, 278522211), (3, 92840737), (11, 25320201), (33, 8440067), (97, 2871363), (291, 957121), (1067, 261033), (3201, 87011)]