19993311

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6329}}^1$

素因数の和:6357

約数の個数: 24

約数和(自身を含む): 32257680

約数和(自身を除く): 12264369

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6329, 18987, 56961, 82277, 170883, 246831, 512649, 740493, 1537947, 2221479, 6664437, 19993311]

約数ペア:

[(1, 19993311), (3, 6664437), (9, 2221479), (13, 1537947), (27, 740493), (39, 512649), (81, 246831), (117, 170883), (243, 82277), (351, 56961), (1053, 18987), (3159, 6329)]