20187156981

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{547}}^1\times {\mathrm{3919}}^1$

素因数の和:4585

約数の個数: 32

約数和(自身を含む): 27977635840

約数和(自身を除く): 7790478859

約数列:

[1, 3, 43, 73, 129, 219, 547, 1641, 3139, 3919, 9417, 11757, 23521, 39931, 70563, 119793, 168517, 286087, 505551, 858261, 1717033, 2143693, 5151099, 6431079, 12301741, 36905223, 92178799, 156489589, 276536397, 469468767, 6729052327, 20187156981]

約数ペア:

[(1, 20187156981), (3, 6729052327), (43, 469468767), (73, 276536397), (129, 156489589), (219, 92178799), (547, 36905223), (1641, 12301741), (3139, 6431079), (3919, 5151099), (9417, 2143693), (11757, 1717033), (23521, 858261), (39931, 505551), (70563, 286087), (119793, 168517)]