20913165

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5107}}^1$

素因数の和:5138

約数の個数: 48

約数和(自身を含む): 44623488

約数和(自身を除く): 23710323

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 5107, 15321, 25535, 35749, 45963, 66391, 76605, 107247, 178745, 199173, 229815, 321741, 331955, 464737, 536235, 597519, 995865, 1394211, 1608705, 2323685, 2987595, 4182633, 6971055, 20913165]

約数ペア:

[(1, 20913165), (3, 6971055), (5, 4182633), (7, 2987595), (9, 2323685), (13, 1608705), (15, 1394211), (21, 995865), (35, 597519), (39, 536235), (45, 464737), (63, 331955), (65, 321741), (91, 229815), (105, 199173), (117, 178745), (195, 107247), (273, 76605), (315, 66391), (455, 45963), (585, 35749), (819, 25535), (1365, 15321), (4095, 5107)]