18904839

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 26757120

約数和(自身を除く): 7852281

約数列:

[1, 3, 29, 59, 87, 127, 177, 381, 841, 1711, 2523, 3683, 5133, 7493, 11049, 22479, 49619, 106807, 148857, 217297, 320421, 651891, 6301613, 18904839]

約数ペア:

[(1, 18904839), (3, 6301613), (29, 651891), (59, 320421), (87, 217297), (127, 148857), (177, 106807), (381, 49619), (841, 22479), (1711, 11049), (2523, 7493), (3683, 5133)]