19962621

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7369}}^1$

素因数の和:7425

約数の個数: 24

約数和(自身を含む): 33725120

約数和(自身を除く): 13762499

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7369, 22107, 51583, 66321, 154749, 316867, 464247, 950601, 2218069, 2851803, 6654207, 19962621]

約数ペア:

[(1, 19962621), (3, 6654207), (7, 2851803), (9, 2218069), (21, 950601), (43, 464247), (63, 316867), (129, 154749), (301, 66321), (387, 51583), (903, 22107), (2709, 7369)]