20871411

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{5227}}^1$

素因数の和:5263

約数の個数: 16

約数和(自身を含む): 30615168

約数和(自身を除く): 9743757

約数列:

[1, 3, 11, 33, 121, 363, 1331, 3993, 5227, 15681, 57497, 172491, 632467, 1897401, 6957137, 20871411]

約数ペア:

[(1, 20871411), (3, 6957137), (11, 1897401), (33, 632467), (121, 172491), (363, 57497), (1331, 15681), (3993, 5227)]