21380464

素因数分解:

$2^4\times 7^2\times {\mathrm{27271}}^1$

素因数の和:27293

約数の個数: 30

約数和(自身を含む): 48189624

約数和(自身を除く): 26809160

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 27271, 54542, 109084, 190897, 218168, 381794, 436336, 763588, 1336279, 1527176, 2672558, 3054352, 5345116, 10690232, 21380464]

約数ペア:

[(1, 21380464), (2, 10690232), (4, 5345116), (7, 3054352), (8, 2672558), (14, 1527176), (16, 1336279), (28, 763588), (49, 436336), (56, 381794), (98, 218168), (112, 190897), (196, 109084), (392, 54542), (784, 27271)]