21306488

素因数分解:

$2^3\times 7^1\times {\mathrm{337}}^1\times {\mathrm{1129}}^1$

素因数の和:1479

約数の個数: 32

約数和(自身を含む): 45832800

約数和(自身を除く): 24526312

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 337, 674, 1129, 1348, 2258, 2359, 2696, 4516, 4718, 7903, 9032, 9436, 15806, 18872, 31612, 63224, 380473, 760946, 1521892, 2663311, 3043784, 5326622, 10653244, 21306488]

約数ペア:

[(1, 21306488), (2, 10653244), (4, 5326622), (7, 3043784), (8, 2663311), (14, 1521892), (28, 760946), (56, 380473), (337, 63224), (674, 31612), (1129, 18872), (1348, 15806), (2258, 9436), (2359, 9032), (2696, 7903), (4516, 4718)]