11997321

素因数分解:

$3^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{883}}^1$

素因数の和:1540

約数の個数: 16

約数和(自身を含む): 18330624

約数和(自身を除く): 6333303

約数列:

[1, 3, 7, 21, 647, 883, 1941, 2649, 4529, 6181, 13587, 18543, 571301, 1713903, 3999107, 11997321]

約数ペア:

[(1, 11997321), (3, 3999107), (7, 1713903), (21, 571301), (647, 18543), (883, 13587), (1941, 6181), (2649, 4529)]