1557183964

素因数分解:

$2^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{86491}}^1$

素因数の和:87145

約数の個数: 24

約数和(自身を含む): 3119247488

約数和(自身を除く): 1562063524

約数列:

[1, 2, 4, 7, 14, 28, 643, 1286, 2572, 4501, 9002, 18004, 86491, 172982, 345964, 605437, 1210874, 2421748, 55613713, 111227426, 222454852, 389295991, 778591982, 1557183964]

約数ペア:

[(1, 1557183964), (2, 778591982), (4, 389295991), (7, 222454852), (14, 111227426), (28, 55613713), (643, 2421748), (1286, 1210874), (2572, 605437), (4501, 345964), (9002, 172982), (18004, 86491)]