18994527

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{419}}^1$

素因数の和:524

約数の個数: 32

約数和(自身を含む): 29836800

約数和(自身を除く): 10842273

約数列:

[1, 3, 9, 23, 27, 69, 73, 207, 219, 419, 621, 657, 1257, 1679, 1971, 3771, 5037, 9637, 11313, 15111, 28911, 30587, 45333, 86733, 91761, 260199, 275283, 703501, 825849, 2110503, 6331509, 18994527]

約数ペア:

[(1, 18994527), (3, 6331509), (9, 2110503), (23, 825849), (27, 703501), (69, 275283), (73, 260199), (207, 91761), (219, 86733), (419, 45333), (621, 30587), (657, 28911), (1257, 15111), (1679, 11313), (1971, 9637), (3771, 5037)]