21407922

素因数分解:

$2^1\times 3^3\times {\mathrm{396443}}^1$

素因数の和:396454

約数の個数: 16

約数和(自身を含む): 47573280

約数和(自身を除く): 26165358

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 396443, 792886, 1189329, 2378658, 3567987, 7135974, 10703961, 21407922]

約数ペア:

[(1, 21407922), (2, 10703961), (3, 7135974), (6, 3567987), (9, 2378658), (18, 1189329), (27, 792886), (54, 396443)]