81173561

素因数分解:

$7^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1\times {\mathrm{349}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 94080000

約数和(自身を除く): 12906439

約数列:

[1, 7, 149, 223, 349, 1043, 1561, 2443, 33227, 52001, 77827, 232589, 364007, 544789, 11596223, 81173561]

約数ペア:

[(1, 81173561), (7, 11596223), (149, 544789), (223, 364007), (349, 232589), (1043, 77827), (1561, 52001), (2443, 33227)]