19992123

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{38971}}^1$

素因数の和:38999

約数の個数: 16

約数和(自身を含む): 31177600

約数和(自身を除く): 11185477

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 38971, 116913, 350739, 740449, 1052217, 2221347, 6664041, 19992123]

約数ペア:

[(1, 19992123), (3, 6664041), (9, 2221347), (19, 1052217), (27, 740449), (57, 350739), (171, 116913), (513, 38971)]