2081781

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{659}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 3363360

約数和(自身を除く): 1281579

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 659, 1053, 1977, 3159, 5931, 8567, 17793, 25701, 53379, 77103, 160137, 231309, 693927, 2081781]

約数ペア:

[(1, 2081781), (3, 693927), (9, 231309), (13, 160137), (27, 77103), (39, 53379), (81, 25701), (117, 17793), (243, 8567), (351, 5931), (659, 3159), (1053, 1977)]