21400708

素因数分解:

$2^2\times 7^1\times {\mathrm{359}}^1\times {\mathrm{2129}}^1$

素因数の和:2499

約数の個数: 24

約数和(自身を含む): 42940800

約数和(自身を除く): 21540092

約数列:

[1, 2, 4, 7, 14, 28, 359, 718, 1436, 2129, 2513, 4258, 5026, 8516, 10052, 14903, 29806, 59612, 764311, 1528622, 3057244, 5350177, 10700354, 21400708]

約数ペア:

[(1, 21400708), (2, 10700354), (4, 5350177), (7, 3057244), (14, 1528622), (28, 764311), (359, 59612), (718, 29806), (1436, 14903), (2129, 10052), (2513, 8516), (4258, 5026)]