39728439

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{2521}}^1$

素因数の和:2647

約数の個数: 24

約数和(自身を含む): 61375392

約数和(自身を除く): 21646953

約数列:

[1, 3, 9, 17, 51, 103, 153, 309, 927, 1751, 2521, 5253, 7563, 15759, 22689, 42857, 128571, 259663, 385713, 778989, 2336967, 4414271, 13242813, 39728439]

約数ペア:

[(1, 39728439), (3, 13242813), (9, 4414271), (17, 2336967), (51, 778989), (103, 385713), (153, 259663), (309, 128571), (927, 42857), (1751, 22689), (2521, 15759), (5253, 7563)]