19220755

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{421}}^1$

素因数の和:846

約数の個数: 16

約数和(自身を含む): 24185664

約数和(自身を除く): 4964909

約数列:

[1, 5, 23, 115, 397, 421, 1985, 2105, 9131, 9683, 45655, 48415, 167137, 835685, 3844151, 19220755]

約数ペア:

[(1, 19220755), (5, 3844151), (23, 835685), (115, 167137), (397, 48415), (421, 45655), (1985, 9683), (2105, 9131)]