21495124

素因数分解:

$2^2\times 7^3\times {\mathrm{15667}}^1$

素因数の和:15692

約数の個数: 24

約数和(自身を含む): 43870400

約数和(自身を除く): 22375276

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15667, 31334, 62668, 109669, 219338, 438676, 767683, 1535366, 3070732, 5373781, 10747562, 21495124]

約数ペア:

[(1, 21495124), (2, 10747562), (4, 5373781), (7, 3070732), (14, 1535366), (28, 767683), (49, 438676), (98, 219338), (196, 109669), (343, 62668), (686, 31334), (1372, 15667)]