18948447

素因数分解:

$3^2\times 7^2\times {\mathrm{42967}}^1$

素因数の和:42987

約数の個数: 18

約数和(自身を含む): 31839288

約数和(自身を除く): 12890841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 42967, 128901, 300769, 386703, 902307, 2105383, 2706921, 6316149, 18948447]

約数ペア:

[(1, 18948447), (3, 6316149), (7, 2706921), (9, 2105383), (21, 902307), (49, 386703), (63, 300769), (147, 128901), (441, 42967)]