21637672

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{8221}}^1$

素因数の和:8281

約数の個数: 32

約数和(自身を含む): 47358720

約数和(自身を除く): 25721048

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 8221, 16442, 32884, 57547, 65768, 115094, 230188, 386387, 460376, 772774, 1545548, 2704709, 3091096, 5409418, 10818836, 21637672]

約数ペア:

[(1, 21637672), (2, 10818836), (4, 5409418), (7, 3091096), (8, 2704709), (14, 1545548), (28, 772774), (47, 460376), (56, 386387), (94, 230188), (188, 115094), (329, 65768), (376, 57547), (658, 32884), (1316, 16442), (2632, 8221)]