21760945

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{619}}^1$

素因数の和:792

約数の個数: 16

約数和(自身を含む): 26784000

約数和(自身を除く): 5023055

約数列:

[1, 5, 79, 89, 395, 445, 619, 3095, 7031, 35155, 48901, 55091, 244505, 275455, 4352189, 21760945]

約数ペア:

[(1, 21760945), (5, 4352189), (79, 275455), (89, 244505), (395, 55091), (445, 48901), (619, 35155), (3095, 7031)]