28009156

素因数分解:

$2^2\times 7^1\times {\mathrm{701}}^1\times {\mathrm{1427}}^1$

素因数の和:2139

約数の個数: 24

約数和(自身を含む): 56137536

約数和(自身を除く): 28128380

約数列:

[1, 2, 4, 7, 14, 28, 701, 1402, 1427, 2804, 2854, 4907, 5708, 9814, 9989, 19628, 19978, 39956, 1000327, 2000654, 4001308, 7002289, 14004578, 28009156]

約数ペア:

[(1, 28009156), (2, 14004578), (4, 7002289), (7, 4001308), (14, 2000654), (28, 1000327), (701, 39956), (1402, 19978), (1427, 19628), (2804, 9989), (2854, 9814), (4907, 5708)]