19891586

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 35356608

約数和(自身を除く): 15465022

約数列:

[1, 2, 11, 13, 22, 26, 143, 157, 286, 314, 443, 886, 1727, 2041, 3454, 4082, 4873, 5759, 9746, 11518, 22451, 44902, 63349, 69551, 126698, 139102, 765061, 904163, 1530122, 1808326, 9945793, 19891586]

約数ペア:

[(1, 19891586), (2, 9945793), (11, 1808326), (13, 1530122), (22, 904163), (26, 765061), (143, 139102), (157, 126698), (286, 69551), (314, 63349), (443, 44902), (886, 22451), (1727, 11518), (2041, 9746), (3454, 5759), (4082, 4873)]