81005805

素因数分解:

$3^3\times 5^1\times {\mathrm{600043}}^1$

素因数の和:600057

約数の個数: 16

約数和(自身を含む): 144010560

約数和(自身を除く): 63004755

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 600043, 1800129, 3000215, 5400387, 9000645, 16201161, 27001935, 81005805]

約数ペア:

[(1, 81005805), (3, 27001935), (5, 16201161), (9, 9000645), (15, 5400387), (27, 3000215), (45, 1800129), (135, 600043)]