81021945

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131743}}^1$

素因数の和:131792

約数の個数: 16

約数和(自身を含む): 132797952

約数和(自身を除く): 51776007

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 131743, 395229, 658715, 1976145, 5401463, 16204389, 27007315, 81021945]

約数ペア:

[(1, 81021945), (3, 27007315), (5, 16204389), (15, 5401463), (41, 1976145), (123, 658715), (205, 395229), (615, 131743)]