21880452874

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67951717}}^1$

素因数の和:67951749

約数の個数: 16

約数和(自身を含む): 39140189568

約数和(自身を除く): 17259736694

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 67951717, 135903434, 475662019, 951324038, 1562889491, 3125778982, 10940226437, 21880452874]

約数ペア:

[(1, 21880452874), (2, 10940226437), (7, 3125778982), (14, 1562889491), (23, 951324038), (46, 475662019), (161, 135903434), (322, 67951717)]