20953303

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{433}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 24887296

約数和(自身を除く): 3933993

約数列:

[1, 7, 31, 217, 223, 433, 1561, 3031, 6913, 13423, 48391, 93961, 96559, 675913, 2993329, 20953303]

約数ペア:

[(1, 20953303), (7, 2993329), (31, 675913), (217, 96559), (223, 93961), (433, 48391), (1561, 13423), (3031, 6913)]