18213525

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{223}}^1$

素因数の和:264

約数の個数: 72

約数和(自身を含む): 36942080

約数和(自身を除く): 18728555

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 121, 135, 165, 223, 225, 275, 297, 363, 495, 605, 669, 675, 825, 1089, 1115, 1485, 1815, 2007, 2453, 2475, 3025, 3267, 3345, 5445, 5575, 6021, 7359, 7425, 9075, 10035, 12265, 16335, 16725, 22077, 26983, 27225, 30105, 36795, 50175, 61325, 66231, 80949, 81675, 110385, 134915, 150525, 183975, 242847, 331155, 404745, 551925, 674575, 728541, 1214235, 1655775, 2023725, 3642705, 6071175, 18213525]

約数ペア:

[(1, 18213525), (3, 6071175), (5, 3642705), (9, 2023725), (11, 1655775), (15, 1214235), (25, 728541), (27, 674575), (33, 551925), (45, 404745), (55, 331155), (75, 242847), (99, 183975), (121, 150525), (135, 134915), (165, 110385), (223, 81675), (225, 80949), (275, 66231), (297, 61325), (363, 50175), (495, 36795), (605, 30105), (669, 27225), (675, 26983), (825, 22077), (1089, 16725), (1115, 16335), (1485, 12265), (1815, 10035), (2007, 9075), (2453, 7425), (2475, 7359), (3025, 6021), (3267, 5575), (3345, 5445)]