81278031

素因数分解:

$3^1\times {\mathrm{41}}^2\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 113139072

約数和(自身を除く): 31861041

約数列:

[1, 3, 41, 71, 123, 213, 227, 681, 1681, 2911, 5043, 8733, 9307, 16117, 27921, 48351, 119351, 358053, 381587, 660797, 1144761, 1982391, 27092677, 81278031]

約数ペア:

[(1, 81278031), (3, 27092677), (41, 1982391), (71, 1144761), (123, 660797), (213, 381587), (227, 358053), (681, 119351), (1681, 48351), (2911, 27921), (5043, 16117), (8733, 9307)]