20807556

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3217}}^1$

素因数の和:3249

約数の個数: 72

約数和(自身を含む): 61631136

約数和(自身を除く): 40823580

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 49, 66, 77, 84, 98, 132, 147, 154, 196, 231, 294, 308, 462, 539, 588, 924, 1078, 1617, 2156, 3217, 3234, 6434, 6468, 9651, 12868, 19302, 22519, 35387, 38604, 45038, 67557, 70774, 90076, 106161, 135114, 141548, 157633, 212322, 247709, 270228, 315266, 424644, 472899, 495418, 630532, 743127, 945798, 990836, 1486254, 1733963, 1891596, 2972508, 3467926, 5201889, 6935852, 10403778, 20807556]

約数ペア:

[(1, 20807556), (2, 10403778), (3, 6935852), (4, 5201889), (6, 3467926), (7, 2972508), (11, 1891596), (12, 1733963), (14, 1486254), (21, 990836), (22, 945798), (28, 743127), (33, 630532), (42, 495418), (44, 472899), (49, 424644), (66, 315266), (77, 270228), (84, 247709), (98, 212322), (132, 157633), (147, 141548), (154, 135114), (196, 106161), (231, 90076), (294, 70774), (308, 67557), (462, 45038), (539, 38604), (588, 35387), (924, 22519), (1078, 19302), (1617, 12868), (2156, 9651), (3217, 6468), (3234, 6434)]