21885283

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2789}}^1$

素因数の和:2874

約数の個数: 16

約数和(自身を含む): 26784000

約数和(自身を除く): 4898717

約数列:

[1, 7, 19, 59, 133, 413, 1121, 2789, 7847, 19523, 52991, 164551, 370937, 1151857, 3126469, 21885283]

約数ペア:

[(1, 21885283), (7, 3126469), (19, 1151857), (59, 370937), (133, 164551), (413, 52991), (1121, 19523), (2789, 7847)]