20971137

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{10771}}^1$

素因数の和:10844

約数の個数: 16

約数和(自身を含む): 31023360

約数和(自身を除く): 10052223

約数列:

[1, 3, 11, 33, 59, 177, 649, 1947, 10771, 32313, 118481, 355443, 635489, 1906467, 6990379, 20971137]

約数ペア:

[(1, 20971137), (3, 6990379), (11, 1906467), (33, 635489), (59, 355443), (177, 118481), (649, 32313), (1947, 10771)]