18215516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{2393}}^1$

素因数の和:2581

約数の個数: 24

約数和(自身を含む): 34990704

約数和(自身を除く): 16775188

約数列:

[1, 2, 4, 11, 22, 44, 173, 346, 692, 1903, 2393, 3806, 4786, 7612, 9572, 26323, 52646, 105292, 413989, 827978, 1655956, 4553879, 9107758, 18215516]

約数ペア:

[(1, 18215516), (2, 9107758), (4, 4553879), (11, 1655956), (22, 827978), (44, 413989), (173, 105292), (346, 52646), (692, 26323), (1903, 9572), (2393, 7612), (3806, 4786)]