20991014

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{593}}^1\times {\mathrm{1609}}^1$

素因数の和:2215

約数の個数: 16

約数和(自身を含む): 34428240

約数和(自身を除く): 13437226

約数列:

[1, 2, 11, 22, 593, 1186, 1609, 3218, 6523, 13046, 17699, 35398, 954137, 1908274, 10495507, 20991014]

約数ペア:

[(1, 20991014), (2, 10495507), (11, 1908274), (22, 954137), (593, 35398), (1186, 17699), (1609, 13046), (3218, 6523)]