28591431

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20149}}^1$

素因数の和:20206

約数の個数: 16

約数和(自身を含む): 42556800

約数和(自身を除く): 13965369

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 20149, 60447, 221639, 664917, 866407, 2599221, 9530477, 28591431]

約数ペア:

[(1, 28591431), (3, 9530477), (11, 2599221), (33, 866407), (43, 664917), (129, 221639), (473, 60447), (1419, 20149)]