21097328

素因数分解:

$2^4\times 7^1\times {\mathrm{188369}}^1$

素因数の和:188384

約数の個数: 20

約数和(自身を含む): 46715760

約数和(自身を除く): 25618432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188369, 376738, 753476, 1318583, 1506952, 2637166, 3013904, 5274332, 10548664, 21097328]

約数ペア:

[(1, 21097328), (2, 10548664), (4, 5274332), (7, 3013904), (8, 2637166), (14, 1506952), (16, 1318583), (28, 753476), (56, 376738), (112, 188369)]