21940137

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1277}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 33493824

約数和(自身を除く): 11553687

約数列:

[1, 3, 9, 23, 69, 83, 207, 249, 747, 1277, 1909, 3831, 5727, 11493, 17181, 29371, 88113, 105991, 264339, 317973, 953919, 2437793, 7313379, 21940137]

約数ペア:

[(1, 21940137), (3, 7313379), (9, 2437793), (23, 953919), (69, 317973), (83, 264339), (207, 105991), (249, 88113), (747, 29371), (1277, 17181), (1909, 11493), (3831, 5727)]