81405438

素因数分解:

$2^1\times 3^1\times {\mathrm{2113}}^1\times {\mathrm{6421}}^1$

素因数の和:8539

約数の個数: 16

約数和(自身を含む): 162913296

約数和(自身を除く): 81507858

約数列:

[1, 2, 3, 6, 2113, 4226, 6339, 6421, 12678, 12842, 19263, 38526, 13567573, 27135146, 40702719, 81405438]

約数ペア:

[(1, 81405438), (2, 40702719), (3, 27135146), (6, 13567573), (2113, 38526), (4226, 19263), (6339, 12842), (6421, 12678)]