71787667

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{1889}}^1$

素因数の和:2046

約数の個数: 16

約数和(自身を含む): 84369600

約数和(自身を除く): 12581933

約数列:

[1, 7, 61, 89, 427, 623, 1889, 5429, 13223, 38003, 115229, 168121, 806603, 1176847, 10255381, 71787667]

約数ペア:

[(1, 71787667), (7, 10255381), (61, 1176847), (89, 806603), (427, 168121), (623, 115229), (1889, 38003), (5429, 13223)]