18954891

素因数分解:

$3^4\times {\mathrm{241}}^1\times {\mathrm{971}}^1$

素因数の和:1224

約数の個数: 20

約数和(自身を含む): 28462104

約数和(自身を除く): 9507213

約数列:

[1, 3, 9, 27, 81, 241, 723, 971, 2169, 2913, 6507, 8739, 19521, 26217, 78651, 234011, 702033, 2106099, 6318297, 18954891]

約数ペア:

[(1, 18954891), (3, 6318297), (9, 2106099), (27, 702033), (81, 234011), (241, 78651), (723, 26217), (971, 19521), (2169, 8739), (2913, 6507)]