21274960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37991}}^1$

素因数の和:38011

約数の個数: 40

約数和(自身を含む): 56532096

約数和(自身を除く): 35257136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37991, 75982, 151964, 189955, 265937, 303928, 379910, 531874, 607856, 759820, 1063748, 1329685, 1519640, 2127496, 2659370, 3039280, 4254992, 5318740, 10637480, 21274960]

約数ペア:

[(1, 21274960), (2, 10637480), (4, 5318740), (5, 4254992), (7, 3039280), (8, 2659370), (10, 2127496), (14, 1519640), (16, 1329685), (20, 1063748), (28, 759820), (35, 607856), (40, 531874), (56, 379910), (70, 303928), (80, 265937), (112, 189955), (140, 151964), (280, 75982), (560, 37991)]