21042760

素因数分解:

$2^3\times 5^1\times {\mathrm{526069}}^1$

素因数の和:526080

約数の個数: 16

約数和(自身を含む): 47346300

約数和(自身を除く): 26303540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 526069, 1052138, 2104276, 2630345, 4208552, 5260690, 10521380, 21042760]

約数ペア:

[(1, 21042760), (2, 10521380), (4, 5260690), (5, 4208552), (8, 2630345), (10, 2104276), (20, 1052138), (40, 526069)]