81260901

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:197

約数の個数: 56

約数和(自身を含む): 132209280

約数和(自身を除く): 50948379

約数列:

[1, 3, 9, 17, 27, 51, 79, 81, 83, 153, 237, 243, 249, 459, 711, 729, 747, 1343, 1377, 1411, 2133, 2241, 4029, 4131, 4233, 6399, 6557, 6723, 12087, 12393, 12699, 19197, 19671, 20169, 36261, 38097, 57591, 59013, 60507, 108783, 111469, 114291, 177039, 326349, 334407, 342873, 531117, 979047, 1003221, 1028619, 1593351, 3009663, 4780053, 9028989, 27086967, 81260901]

約数ペア:

[(1, 81260901), (3, 27086967), (9, 9028989), (17, 4780053), (27, 3009663), (51, 1593351), (79, 1028619), (81, 1003221), (83, 979047), (153, 531117), (237, 342873), (243, 334407), (249, 326349), (459, 177039), (711, 114291), (729, 111469), (747, 108783), (1343, 60507), (1377, 59013), (1411, 57591), (2133, 38097), (2241, 36261), (4029, 20169), (4131, 19671), (4233, 19197), (6399, 12699), (6557, 12393), (6723, 12087)]