81804177

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{751}}^1$

素因数の和:803

約数の個数: 72

約数和(自身を含む): 156024960

約数和(自身を除く): 74220783

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 49, 57, 63, 91, 117, 133, 147, 171, 247, 273, 399, 441, 637, 741, 751, 819, 931, 1197, 1729, 1911, 2223, 2253, 2793, 5187, 5257, 5733, 6759, 8379, 9763, 12103, 14269, 15561, 15771, 29289, 36309, 36799, 42807, 47313, 68341, 87867, 99883, 108927, 110397, 128421, 185497, 205023, 299649, 331191, 478387, 556491, 615069, 699181, 898947, 1298479, 1435161, 1669473, 2097543, 3895437, 4305483, 6292629, 9089353, 11686311, 27268059, 81804177]

約数ペア:

[(1, 81804177), (3, 27268059), (7, 11686311), (9, 9089353), (13, 6292629), (19, 4305483), (21, 3895437), (39, 2097543), (49, 1669473), (57, 1435161), (63, 1298479), (91, 898947), (117, 699181), (133, 615069), (147, 556491), (171, 478387), (247, 331191), (273, 299649), (399, 205023), (441, 185497), (637, 128421), (741, 110397), (751, 108927), (819, 99883), (931, 87867), (1197, 68341), (1729, 47313), (1911, 42807), (2223, 36799), (2253, 36309), (2793, 29289), (5187, 15771), (5257, 15561), (5733, 14269), (6759, 12103), (8379, 9763)]