21330419

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{383}}^1$

素因数の和:538

約数の個数: 16

約数和(自身を含む): 23998464

約数和(自身を除く): 2668045

約数列:

[1, 11, 61, 83, 383, 671, 913, 4213, 5063, 23363, 31789, 55693, 256993, 349679, 1939129, 21330419]

約数ペア:

[(1, 21330419), (11, 1939129), (61, 349679), (83, 256993), (383, 55693), (671, 31789), (913, 23363), (4213, 5063)]