11720639

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1693}}^1$

素因数の和:1766

約数の個数: 16

約数和(自身を含む): 14310912

約数和(自身を除く): 2590273

約数列:

[1, 7, 23, 43, 161, 301, 989, 1693, 6923, 11851, 38939, 72799, 272573, 509593, 1674377, 11720639]

約数ペア:

[(1, 11720639), (7, 1674377), (23, 509593), (43, 272573), (161, 72799), (301, 38939), (989, 11851), (1693, 6923)]