2081961

素因数分解:

$3^2\times 7^2\times {\mathrm{4721}}^1$

素因数の和:4741

約数の個数: 18

約数和(自身を含む): 3499002

約数和(自身を除く): 1417041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 4721, 14163, 33047, 42489, 99141, 231329, 297423, 693987, 2081961]

約数ペア:

[(1, 2081961), (3, 693987), (7, 297423), (9, 231329), (21, 99141), (49, 42489), (63, 33047), (147, 14163), (441, 4721)]