18718425

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2521}}^1$

素因数の和:2551

約数の個数: 48

約数和(自身を含む): 37527360

約数和(自身を除く): 18808935

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 135, 165, 225, 275, 297, 495, 675, 825, 1485, 2475, 2521, 7425, 7563, 12605, 22689, 27731, 37815, 63025, 68067, 83193, 113445, 138655, 189075, 249579, 340335, 415965, 567225, 693275, 748737, 1247895, 1701675, 2079825, 3743685, 6239475, 18718425]

約数ペア:

[(1, 18718425), (3, 6239475), (5, 3743685), (9, 2079825), (11, 1701675), (15, 1247895), (25, 748737), (27, 693275), (33, 567225), (45, 415965), (55, 340335), (75, 249579), (99, 189075), (135, 138655), (165, 113445), (225, 83193), (275, 68067), (297, 63025), (495, 37815), (675, 27731), (825, 22689), (1485, 12605), (2475, 7563), (2521, 7425)]