81657751

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{16361}}^1$

素因数の和:16422

約数の個数: 16

約数和(自身を含む): 100528128

約数和(自身を除く): 18870377

約数列:

[1, 7, 23, 31, 161, 217, 713, 4991, 16361, 114527, 376303, 507191, 2634121, 3550337, 11665393, 81657751]

約数ペア:

[(1, 81657751), (7, 11665393), (23, 3550337), (31, 2634121), (161, 507191), (217, 376303), (713, 114527), (4991, 16361)]