217951216

素因数分解:

$2^4\times 7^2\times {\mathrm{277999}}^1$

素因数の和:278021

約数の個数: 30

約数和(自身を含む): 491226000

約数和(自身を除く): 273274784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 277999, 555998, 1111996, 1945993, 2223992, 3891986, 4447984, 7783972, 13621951, 15567944, 27243902, 31135888, 54487804, 108975608, 217951216]

約数ペア:

[(1, 217951216), (2, 108975608), (4, 54487804), (7, 31135888), (8, 27243902), (14, 15567944), (16, 13621951), (28, 7783972), (49, 4447984), (56, 3891986), (98, 2223992), (112, 1945993), (196, 1111996), (392, 555998), (784, 277999)]