19181390

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2371}}^1$

素因数の和:3187

約数の個数: 16

約数和(自身を含む): 34583760

約数和(自身を除く): 15402370

約数列:

[1, 2, 5, 10, 809, 1618, 2371, 4045, 4742, 8090, 11855, 23710, 1918139, 3836278, 9590695, 19181390]

約数ペア:

[(1, 19181390), (2, 9590695), (5, 3836278), (10, 1918139), (809, 23710), (1618, 11855), (2371, 8090), (4045, 4742)]