21131242

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{6361}}^1$

素因数の和:6525

約数の個数: 16

約数和(自身を含む): 34812864

約数和(自身を除く): 13681622

約数列:

[1, 2, 11, 22, 151, 302, 1661, 3322, 6361, 12722, 69971, 139942, 960511, 1921022, 10565621, 21131242]

約数ペア:

[(1, 21131242), (2, 10565621), (11, 1921022), (22, 960511), (151, 139942), (302, 69971), (1661, 12722), (3322, 6361)]