21708455

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1\times {\mathrm{433}}^1$

素因数の和:746

約数の個数: 16

約数和(自身を含む): 26914944

約数和(自身を除く): 5206489

約数列:

[1, 5, 37, 185, 271, 433, 1355, 2165, 10027, 16021, 50135, 80105, 117343, 586715, 4341691, 21708455]

約数ペア:

[(1, 21708455), (5, 4341691), (37, 586715), (185, 117343), (271, 80105), (433, 50135), (1355, 16021), (2165, 10027)]