81960057

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{2729}}^1$

素因数の和:2853

約数の個数: 24

約数和(自身を含む): 122653440

約数和(自身を除く): 40693383

約数列:

[1, 3, 9, 47, 71, 141, 213, 423, 639, 2729, 3337, 8187, 10011, 24561, 30033, 128263, 193759, 384789, 581277, 1154367, 1743831, 9106673, 27320019, 81960057]

約数ペア:

[(1, 81960057), (3, 27320019), (9, 9106673), (47, 1743831), (71, 1154367), (141, 581277), (213, 384789), (423, 193759), (639, 128263), (2729, 30033), (3337, 24561), (8187, 10011)]