81898209

素因数分解:

$3^4\times {\mathrm{163}}^1\times {\mathrm{6203}}^1$

素因数の和:6378

約数の個数: 20

約数和(自身を含む): 123112176

約数和(自身を除く): 41213967

約数列:

[1, 3, 9, 27, 81, 163, 489, 1467, 4401, 6203, 13203, 18609, 55827, 167481, 502443, 1011089, 3033267, 9099801, 27299403, 81898209]

約数ペア:

[(1, 81898209), (3, 27299403), (9, 9099801), (27, 3033267), (81, 1011089), (163, 502443), (489, 167481), (1467, 55827), (4401, 18609), (6203, 13203)]