2561867

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1$

素因数の和:136

約数の個数: 20

約数和(自身を含む): 3293976

約数和(自身を除く): 732109

約数列:

[1, 7, 11, 49, 77, 97, 343, 539, 679, 1067, 2401, 3773, 4753, 7469, 26411, 33271, 52283, 232897, 365981, 2561867]

約数ペア:

[(1, 2561867), (7, 365981), (11, 232897), (49, 52283), (77, 33271), (97, 26411), (343, 7469), (539, 4753), (679, 3773), (1067, 2401)]