18289439

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2417}}^1$

素因数の和:2494

約数の個数: 16

約数和(自身を含む): 22284288

約数和(自身を除く): 3994849

約数列:

[1, 7, 23, 47, 161, 329, 1081, 2417, 7567, 16919, 55591, 113599, 389137, 795193, 2612777, 18289439]

約数ペア:

[(1, 18289439), (7, 2612777), (23, 795193), (47, 389137), (161, 113599), (329, 55591), (1081, 16919), (2417, 7567)]