18986781688

素因数分解:

$2^3\times 7^1\times {\mathrm{339049673}}^1$

素因数の和:339049686

約数の個数: 16

約数和(自身を含む): 40685960880

約数和(自身を除く): 21699179192

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 339049673, 678099346, 1356198692, 2373347711, 2712397384, 4746695422, 9493390844, 18986781688]

約数ペア:

[(1, 18986781688), (2, 9493390844), (4, 4746695422), (7, 2712397384), (8, 2373347711), (14, 1356198692), (28, 678099346), (56, 339049673)]