19917279

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{12503}}^1$

素因数の和:12571

約数の個数: 16

約数和(自身を含む): 30009600

約数和(自身を除く): 10092321

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 12503, 37509, 112527, 337581, 737677, 2213031, 6639093, 19917279]

約数ペア:

[(1, 19917279), (3, 6639093), (9, 2213031), (27, 737677), (59, 337581), (177, 112527), (531, 37509), (1593, 12503)]