81877789

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{2971}}^1$

素因数の和:3136

約数の個数: 16

約数和(自身を含む): 97386496

約数和(自身を除く): 15508707

約数列:

[1, 7, 31, 127, 217, 889, 2971, 3937, 20797, 27559, 92101, 377317, 644707, 2641219, 11696827, 81877789]

約数ペア:

[(1, 81877789), (7, 11696827), (31, 2641219), (127, 644707), (217, 377317), (889, 92101), (2971, 27559), (3937, 20797)]