16977591

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{163}}^2$

素因数の和:403

約数の個数: 18

約数和(自身を含む): 25022088

約数和(自身を除く): 8044497

約数列:

[1, 3, 9, 71, 163, 213, 489, 639, 1467, 11573, 26569, 34719, 79707, 104157, 239121, 1886399, 5659197, 16977591]

約数ペア:

[(1, 16977591), (3, 5659197), (9, 1886399), (71, 239121), (163, 104157), (213, 79707), (489, 34719), (639, 26569), (1467, 11573)]