20456219

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{433}}^1$

素因数の和:854

約数の個数: 16

約数和(自身を含む): 24873408

約数和(自身を除く): 4417189

約数列:

[1, 7, 17, 119, 397, 433, 2779, 3031, 6749, 7361, 47243, 51527, 171901, 1203307, 2922317, 20456219]

約数ペア:

[(1, 20456219), (7, 2922317), (17, 1203307), (119, 171901), (397, 51527), (433, 47243), (2779, 7361), (3031, 6749)]