18921429

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{29611}}^1$

素因数の和:29688

約数の個数: 12

約数和(自身を含む): 27716832

約数和(自身を除く): 8795403

約数列:

[1, 3, 9, 71, 213, 639, 29611, 88833, 266499, 2102381, 6307143, 18921429]

約数ペア:

[(1, 18921429), (3, 6307143), (9, 2102381), (71, 266499), (213, 88833), (639, 29611)]