19991926

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{919}}^1$

素因数の和:1143

約数の個数: 16

約数和(自身を含む): 30636000

約数和(自身を除く): 10644074

約数列:

[1, 2, 73, 146, 149, 298, 919, 1838, 10877, 21754, 67087, 134174, 136931, 273862, 9995963, 19991926]

約数ペア:

[(1, 19991926), (2, 9995963), (73, 273862), (146, 136931), (149, 134174), (298, 67087), (919, 21754), (1838, 10877)]