21141155

素因数分解:

$5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{4409}}^1$

素因数の和:4558

約数の個数: 16

約数和(自身を含む): 29211840

約数和(自身を除く): 8070685

約数列:

[1, 5, 7, 35, 137, 685, 959, 4409, 4795, 22045, 30863, 154315, 604033, 3020165, 4228231, 21141155]

約数ペア:

[(1, 21141155), (5, 4228231), (7, 3020165), (35, 604033), (137, 154315), (685, 30863), (959, 22045), (4409, 4795)]