21000638960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37501141}}^1$

素因数の和:37501161

約数の個数: 40

約数和(自身を含む): 55801699296

約数和(自身を除く): 34801060336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37501141, 75002282, 150004564, 187505705, 262507987, 300009128, 375011410, 525015974, 600018256, 750022820, 1050031948, 1312539935, 1500045640, 2100063896, 2625079870, 3000091280, 4200127792, 5250159740, 10500319480, 21000638960]

約数ペア:

[(1, 21000638960), (2, 10500319480), (4, 5250159740), (5, 4200127792), (7, 3000091280), (8, 2625079870), (10, 2100063896), (14, 1500045640), (16, 1312539935), (20, 1050031948), (28, 750022820), (35, 600018256), (40, 525015974), (56, 375011410), (70, 300009128), (80, 262507987), (112, 187505705), (140, 150004564), (280, 75002282), (560, 37501141)]