12981915

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6709}}^1$

素因数の和:6763

約数の個数: 24

約数和(自身を含む): 23028720

約数和(自身を除く): 10046805

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 6709, 20127, 33545, 60381, 100635, 288487, 301905, 865461, 1442435, 2596383, 4327305, 12981915]

約数ペア:

[(1, 12981915), (3, 4327305), (5, 2596383), (9, 1442435), (15, 865461), (43, 301905), (45, 288487), (129, 100635), (215, 60381), (387, 33545), (645, 20127), (1935, 6709)]