1061505

素因数分解:

$3^4\times 5^1\times {\mathrm{2621}}^1$

素因数の和:2638

約数の個数: 20

約数和(自身を含む): 1903572

約数和(自身を除く): 842067

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2621, 7863, 13105, 23589, 39315, 70767, 117945, 212301, 353835, 1061505]

約数ペア:

[(1, 1061505), (3, 353835), (5, 212301), (9, 117945), (15, 70767), (27, 39315), (45, 23589), (81, 13105), (135, 7863), (405, 2621)]