18954945

素因数分解:

$3^3\times 5^1\times {\mathrm{140407}}^1$

素因数の和:140421

約数の個数: 16

約数和(自身を含む): 33697920

約数和(自身を除く): 14742975

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 140407, 421221, 702035, 1263663, 2106105, 3790989, 6318315, 18954945]

約数ペア:

[(1, 18954945), (3, 6318315), (5, 3790989), (9, 2106105), (15, 1263663), (27, 702035), (45, 421221), (135, 140407)]