9865405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{991}}^1$

素因数の和:1188

約数の個数: 16

約数和(自身を含む): 12999168

約数和(自身を除く): 3133763

約数列:

[1, 5, 11, 55, 181, 905, 991, 1991, 4955, 9955, 10901, 54505, 179371, 896855, 1973081, 9865405]

約数ペア:

[(1, 9865405), (5, 1973081), (11, 896855), (55, 179371), (181, 54505), (905, 10901), (991, 9955), (1991, 4955)]