21756427

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4789}}^1$

素因数の和:4866

約数の個数: 16

約数和(自身を含む): 27590400

約数和(自身を除く): 5833973

約数列:

[1, 7, 11, 59, 77, 413, 649, 4543, 4789, 33523, 52679, 282551, 368753, 1977857, 3108061, 21756427]

約数ペア:

[(1, 21756427), (7, 3108061), (11, 1977857), (59, 368753), (77, 282551), (413, 52679), (649, 33523), (4543, 4789)]