20996786

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{683}}^1\times {\mathrm{809}}^1$

素因数の和:1513

約数の個数: 16

約数和(自身を含む): 33242400

約数和(自身を除く): 12245614

約数列:

[1, 2, 19, 38, 683, 809, 1366, 1618, 12977, 15371, 25954, 30742, 552547, 1105094, 10498393, 20996786]

約数ペア:

[(1, 20996786), (2, 10498393), (19, 1105094), (38, 552547), (683, 30742), (809, 25954), (1366, 15371), (1618, 12977)]