81547767

素因数分解:

$3^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{3527}}^1$

素因数の和:3907

約数の個数: 24

約数和(自身を含む): 135023616

約数和(自身を除く): 53475849

約数列:

[1, 3, 7, 9, 21, 63, 367, 1101, 2569, 3303, 3527, 7707, 10581, 23121, 24689, 31743, 74067, 222201, 1294409, 3883227, 9060863, 11649681, 27182589, 81547767]

約数ペア:

[(1, 81547767), (3, 27182589), (7, 11649681), (9, 9060863), (21, 3883227), (63, 1294409), (367, 222201), (1101, 74067), (2569, 31743), (3303, 24689), (3527, 23121), (7707, 10581)]