18020475

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{809}}^1$

素因数の和:842

約数の個数: 60

約数和(自身を含む): 36459720

約数和(自身を除く): 18439245

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 81, 99, 135, 165, 225, 275, 297, 405, 495, 675, 809, 825, 891, 1485, 2025, 2427, 2475, 4045, 4455, 7281, 7425, 8899, 12135, 20225, 21843, 22275, 26697, 36405, 44495, 60675, 65529, 80091, 109215, 133485, 182025, 222475, 240273, 327645, 400455, 546075, 667425, 720819, 1201365, 1638225, 2002275, 3604095, 6006825, 18020475]

約数ペア:

[(1, 18020475), (3, 6006825), (5, 3604095), (9, 2002275), (11, 1638225), (15, 1201365), (25, 720819), (27, 667425), (33, 546075), (45, 400455), (55, 327645), (75, 240273), (81, 222475), (99, 182025), (135, 133485), (165, 109215), (225, 80091), (275, 65529), (297, 60675), (405, 44495), (495, 36405), (675, 26697), (809, 22275), (825, 21843), (891, 20225), (1485, 12135), (2025, 8899), (2427, 7425), (2475, 7281), (4045, 4455)]