21137347

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{1301}}^1$

素因数の和:1530

約数の個数: 16

約数和(自身を含む): 26498304

約数和(自身を除く): 5360957

約数列:

[1, 7, 11, 77, 211, 1301, 1477, 2321, 9107, 14311, 16247, 100177, 274511, 1921577, 3019621, 21137347]

約数ペア:

[(1, 21137347), (7, 3019621), (11, 1921577), (77, 274511), (211, 100177), (1301, 16247), (1477, 14311), (2321, 9107)]