81204405

素因数分解:

$3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{25657}}^1$

素因数の和:25876

約数の個数: 16

約数和(自身を含む): 130547904

約数和(自身を除く): 49343499

約数列:

[1, 3, 5, 15, 211, 633, 1055, 3165, 25657, 76971, 128285, 384855, 5413627, 16240881, 27068135, 81204405]

約数ペア:

[(1, 81204405), (3, 27068135), (5, 16240881), (15, 5413627), (211, 384855), (633, 128285), (1055, 76971), (3165, 25657)]