18374445

素因数分解:

$3^6\times 5^1\times {\mathrm{71}}^2$

素因数の和:165

約数の個数: 42

約数和(自身を含む): 33531054

約数和(自身を除く): 15156609

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 135, 213, 243, 355, 405, 639, 729, 1065, 1215, 1917, 3195, 3645, 5041, 5751, 9585, 15123, 17253, 25205, 28755, 45369, 51759, 75615, 86265, 136107, 226845, 258795, 408321, 680535, 1224963, 2041605, 3674889, 6124815, 18374445]

約数ペア:

[(1, 18374445), (3, 6124815), (5, 3674889), (9, 2041605), (15, 1224963), (27, 680535), (45, 408321), (71, 258795), (81, 226845), (135, 136107), (213, 86265), (243, 75615), (355, 51759), (405, 45369), (639, 28755), (729, 25205), (1065, 17253), (1215, 15123), (1917, 9585), (3195, 5751), (3645, 5041)]