20214921

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{607}}^1\times {\mathrm{653}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 28629504

約数和(自身を除く): 8414583

約数列:

[1, 3, 17, 51, 607, 653, 1821, 1959, 10319, 11101, 30957, 33303, 396371, 1189113, 6738307, 20214921]

約数ペア:

[(1, 20214921), (3, 6738307), (17, 1189113), (51, 396371), (607, 33303), (653, 30957), (1821, 11101), (1959, 10319)]