20609968

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{9833}}^1$

素因数の和:9972

約数の個数: 20

約数和(自身を含む): 40240728

約数和(自身を除く): 19630760

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 9833, 19666, 39332, 78664, 157328, 1288123, 2576246, 5152492, 10304984, 20609968]

約数ペア:

[(1, 20609968), (2, 10304984), (4, 5152492), (8, 2576246), (16, 1288123), (131, 157328), (262, 78664), (524, 39332), (1048, 19666), (2096, 9833)]