1668486519

素因数分解:

$3^4\times 7^1\times {\mathrm{2942657}}^1$

素因数の和:2942676

約数の個数: 20

約数和(自身を含む): 2848492944

約数和(自身を除く): 1180006425

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 2942657, 8827971, 20598599, 26483913, 61795797, 79451739, 185387391, 238355217, 556162173, 1668486519]

約数ペア:

[(1, 1668486519), (3, 556162173), (7, 238355217), (9, 185387391), (21, 79451739), (27, 61795797), (63, 26483913), (81, 20598599), (189, 8827971), (567, 2942657)]