2041605

素因数分解:

$3^4\times 5^1\times {\mathrm{71}}^2$

素因数の和:159

約数の個数: 30

約数和(自身を含む): 3712038

約数和(自身を除く): 1670433

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 135, 213, 355, 405, 639, 1065, 1917, 3195, 5041, 5751, 9585, 15123, 25205, 28755, 45369, 75615, 136107, 226845, 408321, 680535, 2041605]

約数ペア:

[(1, 2041605), (3, 680535), (5, 408321), (9, 226845), (15, 136107), (27, 75615), (45, 45369), (71, 28755), (81, 25205), (135, 15123), (213, 9585), (355, 5751), (405, 5041), (639, 3195), (1065, 1917)]