18216225

素因数分解:

$3^3\times 5^2\times {\mathrm{26987}}^1$

素因数の和:27006

約数の個数: 24

約数和(自身を含む): 33465120

約数和(自身を除く): 15248895

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 26987, 80961, 134935, 242883, 404805, 674675, 728649, 1214415, 2024025, 3643245, 6072075, 18216225]

約数ペア:

[(1, 18216225), (3, 6072075), (5, 3643245), (9, 2024025), (15, 1214415), (25, 728649), (27, 674675), (45, 404805), (75, 242883), (135, 134935), (225, 80961), (675, 26987)]