20650105

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{13721}}^1$

素因数の和:13776

約数の個数: 16

約数和(自身を含む): 28980864

約数和(自身を除く): 8330759

約数列:

[1, 5, 7, 35, 43, 215, 301, 1505, 13721, 68605, 96047, 480235, 590003, 2950015, 4130021, 20650105]

約数ペア:

[(1, 20650105), (5, 4130021), (7, 2950015), (35, 590003), (43, 480235), (215, 96047), (301, 68605), (1505, 13721)]