21373795

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1117}}^1$

素因数の和:1254

約数の個数: 16

約数和(自身を含む): 26563680

約数和(自身を除く): 5189885

約数列:

[1, 5, 43, 89, 215, 445, 1117, 3827, 5585, 19135, 48031, 99413, 240155, 497065, 4274759, 21373795]

約数ペア:

[(1, 21373795), (5, 4274759), (43, 497065), (89, 240155), (215, 99413), (445, 48031), (1117, 19135), (3827, 5585)]