16821729

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{14489}}^1$

素因数の和:14541

約数の個数: 16

約数和(自身を含む): 25502400

約数和(自身を除く): 8680671

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 14489, 43467, 130401, 391203, 623027, 1869081, 5607243, 16821729]

約数ペア:

[(1, 16821729), (3, 5607243), (9, 1869081), (27, 623027), (43, 391203), (129, 130401), (387, 43467), (1161, 14489)]