28278586

素因数分解:

$2^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{2857}}^1$

素因数の和:2974

約数の個数: 24

約数和(自身を含む): 49849236

約数和(自身を除く): 21570650

約数列:

[1, 2, 7, 14, 49, 98, 101, 202, 707, 1414, 2857, 4949, 5714, 9898, 19999, 39998, 139993, 279986, 288557, 577114, 2019899, 4039798, 14139293, 28278586]

約数ペア:

[(1, 28278586), (2, 14139293), (7, 4039798), (14, 2019899), (49, 577114), (98, 288557), (101, 279986), (202, 139993), (707, 39998), (1414, 19999), (2857, 9898), (4949, 5714)]