20121274

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{1039}}^1$

素因数の和:1485

約数の個数: 16

約数和(自身を含む): 31599360

約数和(自身を除く): 11478086

約数列:

[1, 2, 23, 46, 421, 842, 1039, 2078, 9683, 19366, 23897, 47794, 437419, 874838, 10060637, 20121274]

約数ペア:

[(1, 20121274), (2, 10060637), (23, 874838), (46, 437419), (421, 47794), (842, 23897), (1039, 19366), (2078, 9683)]