21785016

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{461}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 38090184

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 179, 264, 358, 461, 537, 716, 922, 1074, 1383, 1432, 1844, 1969, 2148, 2766, 3688, 3938, 4296, 5071, 5532, 5907, 7876, 10142, 11064, 11814, 15213, 15752, 20284, 23628, 30426, 40568, 47256, 60852, 82519, 121704, 165038, 247557, 330076, 495114, 660152, 907709, 990228, 1815418, 1980456, 2723127, 3630836, 5446254, 7261672, 10892508, 21785016]

約数ペア:

[(1, 21785016), (2, 10892508), (3, 7261672), (4, 5446254), (6, 3630836), (8, 2723127), (11, 1980456), (12, 1815418), (22, 990228), (24, 907709), (33, 660152), (44, 495114), (66, 330076), (88, 247557), (132, 165038), (179, 121704), (264, 82519), (358, 60852), (461, 47256), (537, 40568), (716, 30426), (922, 23628), (1074, 20284), (1383, 15752), (1432, 15213), (1844, 11814), (1969, 11064), (2148, 10142), (2766, 7876), (3688, 5907), (3938, 5532), (4296, 5071)]