18740029

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1223}}^1$

素因数の和:1440

約数の個数: 16

約数和(自身を含む): 23500800

約数和(自身を除く): 4760771

約数列:

[1, 7, 11, 77, 199, 1223, 1393, 2189, 8561, 13453, 15323, 94171, 243377, 1703639, 2677147, 18740029]

約数ペア:

[(1, 18740029), (7, 2677147), (11, 1703639), (77, 243377), (199, 94171), (1223, 15323), (1393, 13453), (2189, 8561)]