199388637

素因数分解:

$3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{17681}}^1$

素因数の和:17873

約数の個数: 24

約数和(自身を含む): 331007040

約数和(自身を除く): 131618403

約数列:

[1, 3, 7, 9, 21, 63, 179, 537, 1253, 1611, 3759, 11277, 17681, 53043, 123767, 159129, 371301, 1113903, 3164899, 9494697, 22154293, 28484091, 66462879, 199388637]

約数ペア:

[(1, 199388637), (3, 66462879), (7, 28484091), (9, 22154293), (21, 9494697), (63, 3164899), (179, 1113903), (537, 371301), (1253, 159129), (1611, 123767), (3759, 53043), (11277, 17681)]