19521281

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:416

約数の個数: 16

約数和(自身を含む): 21665280

約数和(自身を除く): 2143999

約数列:

[1, 13, 61, 103, 239, 793, 1339, 3107, 6283, 14579, 24617, 81679, 189527, 320021, 1501637, 19521281]

約数ペア:

[(1, 19521281), (13, 1501637), (61, 320021), (103, 189527), (239, 81679), (793, 24617), (1339, 14579), (3107, 6283)]