81867247

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{7649}}^1$

素因数の和:7806

約数の個数: 16

約数和(自身を含む): 102816000

約数和(自身を除く): 20948753

約数列:

[1, 7, 11, 77, 139, 973, 1529, 7649, 10703, 53543, 84139, 588973, 1063211, 7442477, 11695321, 81867247]

約数ペア:

[(1, 81867247), (7, 11695321), (11, 7442477), (77, 1063211), (139, 588973), (973, 84139), (1529, 53543), (7649, 10703)]