81607449

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2371}}^1$

素因数の和:2541

約数の個数: 32

約数和(自身を含む): 136627200

約数和(自身を除く): 55019751

約数列:

[1, 3, 7, 11, 21, 33, 77, 149, 231, 447, 1043, 1639, 2371, 3129, 4917, 7113, 11473, 16597, 26081, 34419, 49791, 78243, 182567, 353279, 547701, 1059837, 2472953, 3886069, 7418859, 11658207, 27202483, 81607449]

約数ペア:

[(1, 81607449), (3, 27202483), (7, 11658207), (11, 7418859), (21, 3886069), (33, 2472953), (77, 1059837), (149, 547701), (231, 353279), (447, 182567), (1043, 78243), (1639, 49791), (2371, 34419), (3129, 26081), (4917, 16597), (7113, 11473)]