21080192

素因数分解:

$2^7\times 7^2\times {\mathrm{3361}}^1$

素因数の和:3389

約数の個数: 48

約数和(自身を含む): 48866670

約数和(自身を除く): 27786478

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3361, 6272, 6722, 13444, 23527, 26888, 47054, 53776, 94108, 107552, 164689, 188216, 215104, 329378, 376432, 430208, 658756, 752864, 1317512, 1505728, 2635024, 3011456, 5270048, 10540096, 21080192]

約数ペア:

[(1, 21080192), (2, 10540096), (4, 5270048), (7, 3011456), (8, 2635024), (14, 1505728), (16, 1317512), (28, 752864), (32, 658756), (49, 430208), (56, 376432), (64, 329378), (98, 215104), (112, 188216), (128, 164689), (196, 107552), (224, 94108), (392, 53776), (448, 47054), (784, 26888), (896, 23527), (1568, 13444), (3136, 6722), (3361, 6272)]