15721938141

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3571}}^1\times {\mathrm{16127}}^1$

素因数の和:19721

約数の個数: 32

約数和(自身を含む): 25808928768

約数和(自身を除く): 10086990627

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 3571, 10713, 16127, 24997, 46423, 48381, 74991, 112889, 139269, 209651, 324961, 338667, 628953, 974883, 1467557, 4402671, 57589517, 172768551, 403126619, 748663721, 1209379857, 2245991163, 5240646047, 15721938141]

約数ペア:

[(1, 15721938141), (3, 5240646047), (7, 2245991163), (13, 1209379857), (21, 748663721), (39, 403126619), (91, 172768551), (273, 57589517), (3571, 4402671), (10713, 1467557), (16127, 974883), (24997, 628953), (46423, 338667), (48381, 324961), (74991, 209651), (112889, 139269)]