20737185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4817}}^1$

素因数の和:4873

約数の個数: 32

約数和(自身を含む): 38852352

約数和(自身を除く): 18115167

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 105, 123, 205, 287, 615, 861, 1435, 4305, 4817, 14451, 24085, 33719, 72255, 101157, 168595, 197497, 505785, 592491, 987485, 1382479, 2962455, 4147437, 6912395, 20737185]

約数ペア:

[(1, 20737185), (3, 6912395), (5, 4147437), (7, 2962455), (15, 1382479), (21, 987485), (35, 592491), (41, 505785), (105, 197497), (123, 168595), (205, 101157), (287, 72255), (615, 33719), (861, 24085), (1435, 14451), (4305, 4817)]