178889391

素因数分解:

$3^4\times {\mathrm{397}}^1\times {\mathrm{5563}}^1$

素因数の和:5972

約数の個数: 20

約数和(自身を含む): 267951112

約数和(自身を除く): 89061721

約数列:

[1, 3, 9, 27, 81, 397, 1191, 3573, 5563, 10719, 16689, 32157, 50067, 150201, 450603, 2208511, 6625533, 19876599, 59629797, 178889391]

約数ペア:

[(1, 178889391), (3, 59629797), (9, 19876599), (27, 6625533), (81, 2208511), (397, 450603), (1191, 150201), (3573, 50067), (5563, 32157), (10719, 16689)]