18252409

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1553}}^1$

素因数の和:1656

約数の個数: 16

約数和(自身を含む): 22079232

約数和(自身を除く): 3826823

約数列:

[1, 7, 23, 73, 161, 511, 1553, 1679, 10871, 11753, 35719, 113369, 250033, 793583, 2607487, 18252409]

約数ペア:

[(1, 18252409), (7, 2607487), (23, 793583), (73, 250033), (161, 113369), (511, 35719), (1553, 11753), (1679, 10871)]