21805080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16519}}^1$

素因数の和:16544

約数の個数: 64

約数和(自身を含む): 71366400

約数和(自身を除く): 49561320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 16519, 33038, 49557, 66076, 82595, 99114, 132152, 165190, 181709, 198228, 247785, 330380, 363418, 396456, 495570, 545127, 660760, 726836, 908545, 991140, 1090254, 1453672, 1817090, 1982280, 2180508, 2725635, 3634180, 4361016, 5451270, 7268360, 10902540, 21805080]

約数ペア:

[(1, 21805080), (2, 10902540), (3, 7268360), (4, 5451270), (5, 4361016), (6, 3634180), (8, 2725635), (10, 2180508), (11, 1982280), (12, 1817090), (15, 1453672), (20, 1090254), (22, 991140), (24, 908545), (30, 726836), (33, 660760), (40, 545127), (44, 495570), (55, 396456), (60, 363418), (66, 330380), (88, 247785), (110, 198228), (120, 181709), (132, 165190), (165, 132152), (220, 99114), (264, 82595), (330, 66076), (440, 49557), (660, 33038), (1320, 16519)]