18849861

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{9833}}^1$

素因数の和:9913

約数の個数: 16

約数和(自身を含む): 28321920

約数和(自身を除く): 9472059

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 9833, 29499, 88497, 265491, 698143, 2094429, 6283287, 18849861]

約数ペア:

[(1, 18849861), (3, 6283287), (9, 2094429), (27, 698143), (71, 265491), (213, 88497), (639, 29499), (1917, 9833)]