21077770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4241}}^1$

素因数の和:4326

約数の個数: 32

約数和(自身を含む): 43981056

約数和(自身を除く): 22903286

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4241, 4970, 8482, 21205, 29687, 42410, 59374, 148435, 296870, 301111, 602222, 1505555, 2107777, 3011110, 4215554, 10538885, 21077770]

約数ペア:

[(1, 21077770), (2, 10538885), (5, 4215554), (7, 3011110), (10, 2107777), (14, 1505555), (35, 602222), (70, 301111), (71, 296870), (142, 148435), (355, 59374), (497, 42410), (710, 29687), (994, 21205), (2485, 8482), (4241, 4970)]