21352639

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6449}}^1$

素因数の和:6510

約数の個数: 16

約数和(自身を含む): 27244800

約数和(自身を除く): 5892161

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 6449, 45143, 70939, 277307, 496573, 1941149, 3050377, 21352639]

約数ペア:

[(1, 21352639), (7, 3050377), (11, 1941149), (43, 496573), (77, 277307), (301, 70939), (473, 45143), (3311, 6449)]