20013776

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8999}}^1$

素因数の和:9146

約数の個数: 20

約数和(自身を含む): 39060000

約数和(自身を除く): 19046224

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8999, 17998, 35996, 71992, 143984, 1250861, 2501722, 5003444, 10006888, 20013776]

約数ペア:

[(1, 20013776), (2, 10006888), (4, 5003444), (8, 2501722), (16, 1250861), (139, 143984), (278, 71992), (556, 35996), (1112, 17998), (2224, 8999)]