19903347

素因数分解:

$3^3\times {\mathrm{571}}^1\times {\mathrm{1291}}^1$

素因数の和:1871

約数の個数: 16

約数和(自身を含む): 29560960

約数和(自身を除く): 9657613

約数列:

[1, 3, 9, 27, 571, 1291, 1713, 3873, 5139, 11619, 15417, 34857, 737161, 2211483, 6634449, 19903347]

約数ペア:

[(1, 19903347), (3, 6634449), (9, 2211483), (27, 737161), (571, 34857), (1291, 15417), (1713, 11619), (3873, 5139)]