20419256193

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2143}}^1\times {\mathrm{12263}}^1$

素因数の和:14453

約数の個数: 32

約数和(自身を含む): 31973523456

約数和(自身を除く): 11554267263

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 2143, 6429, 12263, 15001, 36789, 45003, 79291, 85841, 237873, 257523, 453731, 555037, 1361193, 1665111, 3176117, 9528351, 26279609, 78838827, 183957263, 551871789, 972345533, 2917036599, 6806418731, 20419256193]

約数ペア:

[(1, 20419256193), (3, 6806418731), (7, 2917036599), (21, 972345533), (37, 551871789), (111, 183957263), (259, 78838827), (777, 26279609), (2143, 9528351), (6429, 3176117), (12263, 1665111), (15001, 1361193), (36789, 555037), (45003, 453731), (79291, 257523), (85841, 237873)]