28717678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{9391}}^1$

素因数の和:9543

約数の個数: 16

約数和(自身を含む): 47335680

約数和(自身を除く): 18618002

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 9391, 18782, 103301, 206602, 1305349, 2610698, 14358839, 28717678]

約数ペア:

[(1, 28717678), (2, 14358839), (11, 2610698), (22, 1305349), (139, 206602), (278, 103301), (1529, 18782), (3058, 9391)]