19788729

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{1171}}^1$

素因数の和:1348

約数の個数: 16

約数和(自身を含む): 27227904

約数和(自身を除く): 7439175

約数列:

[1, 3, 43, 129, 131, 393, 1171, 3513, 5633, 16899, 50353, 151059, 153401, 460203, 6596243, 19788729]

約数ペア:

[(1, 19788729), (3, 6596243), (43, 460203), (129, 153401), (131, 151059), (393, 50353), (1171, 16899), (3513, 5633)]