18725749

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1087}}^1$

素因数の和:1224

約数の個数: 16

約数和(自身を含む): 22560768

約数和(自身を除く): 3835019

約数列:

[1, 7, 23, 107, 161, 749, 1087, 2461, 7609, 17227, 25001, 116309, 175007, 814163, 2675107, 18725749]

約数ペア:

[(1, 18725749), (7, 2675107), (23, 814163), (107, 175007), (161, 116309), (749, 25001), (1087, 17227), (2461, 7609)]