19958782

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{3739}}^1$

素因数の和:3915

約数の個数: 16

約数和(自身を含む): 31909680

約数和(自身を除く): 11950898

約数列:

[1, 2, 17, 34, 157, 314, 2669, 3739, 5338, 7478, 63563, 127126, 587023, 1174046, 9979391, 19958782]

約数ペア:

[(1, 19958782), (2, 9979391), (17, 1174046), (34, 587023), (157, 127126), (314, 63563), (2669, 7478), (3739, 5338)]