20571285

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1831}}^1$

素因数の和:1953

約数の個数: 32

約数和(自身を含む): 37988352

約数和(自身を除く): 17417067

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 107, 321, 535, 749, 1605, 1831, 2247, 3745, 5493, 9155, 11235, 12817, 27465, 38451, 64085, 192255, 195917, 587751, 979585, 1371419, 2938755, 4114257, 6857095, 20571285]

約数ペア:

[(1, 20571285), (3, 6857095), (5, 4114257), (7, 2938755), (15, 1371419), (21, 979585), (35, 587751), (105, 195917), (107, 192255), (321, 64085), (535, 38451), (749, 27465), (1605, 12817), (1831, 11235), (2247, 9155), (3745, 5493)]