81171153

素因数分解:

$3^4\times 7^1\times {\mathrm{143159}}^1$

素因数の和:143178

約数の個数: 20

約数和(自身を含む): 138578880

約数和(自身を除く): 57407727

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 143159, 429477, 1002113, 1288431, 3006339, 3865293, 9019017, 11595879, 27057051, 81171153]

約数ペア:

[(1, 81171153), (3, 27057051), (7, 11595879), (9, 9019017), (21, 3865293), (27, 3006339), (63, 1288431), (81, 1002113), (189, 429477), (567, 143159)]