18921758

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{1109}}^1$

素因数の和:1579

約数の個数: 16

約数和(自身を含む): 29970000

約数和(自身を除く): 11048242

約数列:

[1, 2, 19, 38, 449, 898, 1109, 2218, 8531, 17062, 21071, 42142, 497941, 995882, 9460879, 18921758]

約数ペア:

[(1, 18921758), (2, 9460879), (19, 995882), (38, 497941), (449, 42142), (898, 21071), (1109, 17062), (2218, 8531)]