2016979209

素因数分解:

$3^2\times 7^2\times {\mathrm{4573649}}^1$

素因数の和:4573669

約数の個数: 18

約数和(自身を含む): 3389074650

約数和(自身を除く): 1372095441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 4573649, 13720947, 32015543, 41162841, 96046629, 224108801, 288139887, 672326403, 2016979209]

約数ペア:

[(1, 2016979209), (3, 672326403), (7, 288139887), (9, 224108801), (21, 96046629), (49, 41162841), (63, 32015543), (147, 13720947), (441, 4573649)]