19082223

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{2647}}^1$

素因数の和:2748

約数の個数: 20

約数和(自身を含む): 28836720

約数和(自身を除く): 9754497

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 2647, 7209, 7941, 23823, 71469, 214407, 235583, 706749, 2120247, 6360741, 19082223]

約数ペア:

[(1, 19082223), (3, 6360741), (9, 2120247), (27, 706749), (81, 235583), (89, 214407), (267, 71469), (801, 23823), (2403, 7941), (2647, 7209)]