21097595

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{5281}}^1$

素因数の和:5350

約数の個数: 16

約数和(自身を含む): 27381888

約数和(自身を除く): 6284293

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 5281, 26405, 89777, 248207, 448885, 1241035, 4219519, 21097595]

約数ペア:

[(1, 21097595), (5, 4219519), (17, 1241035), (47, 448885), (85, 248207), (235, 89777), (799, 26405), (3995, 5281)]