12821390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67481}}^1$

素因数の和:67507

約数の個数: 16

約数和(自身を含む): 24293520

約数和(自身を除く): 11472130

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 67481, 134962, 337405, 674810, 1282139, 2564278, 6410695, 12821390]

約数ペア:

[(1, 12821390), (2, 6410695), (5, 2564278), (10, 1282139), (19, 674810), (38, 337405), (95, 134962), (190, 67481)]