20537888

素因数分解:

$2^5\times 7^1\times {\mathrm{277}}^1\times {\mathrm{331}}^1$

素因数の和:625

約数の個数: 48

約数和(自身を含む): 46517184

約数和(自身を除く): 25979296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 277, 331, 554, 662, 1108, 1324, 1939, 2216, 2317, 2648, 3878, 4432, 4634, 5296, 7756, 8864, 9268, 10592, 15512, 18536, 31024, 37072, 62048, 74144, 91687, 183374, 366748, 641809, 733496, 1283618, 1466992, 2567236, 2933984, 5134472, 10268944, 20537888]

約数ペア:

[(1, 20537888), (2, 10268944), (4, 5134472), (7, 2933984), (8, 2567236), (14, 1466992), (16, 1283618), (28, 733496), (32, 641809), (56, 366748), (112, 183374), (224, 91687), (277, 74144), (331, 62048), (554, 37072), (662, 31024), (1108, 18536), (1324, 15512), (1939, 10592), (2216, 9268), (2317, 8864), (2648, 7756), (3878, 5296), (4432, 4634)]