20125287

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8191}}^1$

素因数の和:8220

約数の個数: 32

約数和(自身を含む): 36700160

約数和(自身を除く): 16574873

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8191, 24573, 57337, 73719, 106483, 172011, 221157, 319449, 516033, 745381, 958347, 1548099, 2236143, 2875041, 6708429, 20125287]

約数ペア:

[(1, 20125287), (3, 6708429), (7, 2875041), (9, 2236143), (13, 1548099), (21, 958347), (27, 745381), (39, 516033), (63, 319449), (91, 221157), (117, 172011), (189, 106483), (273, 73719), (351, 57337), (819, 24573), (2457, 8191)]