21078629

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{661}}^1$

素因数の和:908

約数の個数: 16

約数和(自身を含む): 24912384

約数和(自身を除く): 3833755

約数列:

[1, 11, 13, 143, 223, 661, 2453, 2899, 7271, 8593, 31889, 94523, 147403, 1621433, 1916239, 21078629]

約数ペア:

[(1, 21078629), (11, 1916239), (13, 1621433), (143, 147403), (223, 94523), (661, 31889), (2453, 8593), (2899, 7271)]