221812911

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{66791}}^1$

素因数の和:66844

約数の個数: 20

約数和(自身を含む): 339436944

約数和(自身を除く): 117624033

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 66791, 200373, 601119, 1803357, 2738431, 5410071, 8215293, 24645879, 73937637, 221812911]

約数ペア:

[(1, 221812911), (3, 73937637), (9, 24645879), (27, 8215293), (41, 5410071), (81, 2738431), (123, 1803357), (369, 601119), (1107, 200373), (3321, 66791)]