20709101

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{643}}^1$

素因数の和:800

約数の個数: 16

約数和(自身を含む): 24482304

約数和(自身を除く): 3773203

約数列:

[1, 7, 43, 107, 301, 643, 749, 4501, 4601, 27649, 32207, 68801, 193543, 481607, 2958443, 20709101]

約数ペア:

[(1, 20709101), (7, 2958443), (43, 481607), (107, 193543), (301, 68801), (643, 32207), (749, 27649), (4501, 4601)]