31261216

素因数分解:

$2^5\times 7^2\times {\mathrm{19937}}^1$

素因数の和:19961

約数の個数: 36

約数和(自身を含む): 71597358

約数和(自身を除く): 40336142

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 19937, 39874, 79748, 139559, 159496, 279118, 318992, 558236, 637984, 976913, 1116472, 1953826, 2232944, 3907652, 4465888, 7815304, 15630608, 31261216]

約数ペア:

[(1, 31261216), (2, 15630608), (4, 7815304), (7, 4465888), (8, 3907652), (14, 2232944), (16, 1953826), (28, 1116472), (32, 976913), (49, 637984), (56, 558236), (98, 318992), (112, 279118), (196, 159496), (224, 139559), (392, 79748), (784, 39874), (1568, 19937)]