18615947

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2689}}^1$

素因数の和:2762

約数の個数: 16

約数和(自身を含む): 22725120

約数和(自身を除く): 4109173

約数列:

[1, 7, 23, 43, 161, 301, 989, 2689, 6923, 18823, 61847, 115627, 432929, 809389, 2659421, 18615947]

約数ペア:

[(1, 18615947), (7, 2659421), (23, 809389), (43, 432929), (161, 115627), (301, 61847), (989, 18823), (2689, 6923)]