21744005

素因数分解:

$5^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:628

約数の個数: 16

約数和(自身を含む): 26671680

約数和(自身を除く): 4927675

約数列:

[1, 5, 97, 107, 419, 485, 535, 2095, 10379, 40643, 44833, 51895, 203215, 224165, 4348801, 21744005]

約数ペア:

[(1, 21744005), (5, 4348801), (97, 224165), (107, 203215), (419, 51895), (485, 44833), (535, 40643), (2095, 10379)]