20216871

素因数分解:

$3^5\times {\mathrm{271}}^1\times {\mathrm{307}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 30494464

約数和(自身を除く): 10277593

約数列:

[1, 3, 9, 27, 81, 243, 271, 307, 813, 921, 2439, 2763, 7317, 8289, 21951, 24867, 65853, 74601, 83197, 249591, 748773, 2246319, 6738957, 20216871]

約数ペア:

[(1, 20216871), (3, 6738957), (9, 2246319), (27, 748773), (81, 249591), (243, 83197), (271, 74601), (307, 65853), (813, 24867), (921, 21951), (2439, 8289), (2763, 7317)]