7787871

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 14274624

約数和(自身を除く): 6486753

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 63, 91, 111, 117, 257, 259, 273, 333, 481, 771, 777, 819, 1443, 1799, 2313, 2331, 3341, 3367, 4329, 5397, 9509, 10023, 10101, 16191, 23387, 28527, 30069, 30303, 66563, 70161, 85581, 123617, 199689, 210483, 370851, 599067, 865319, 1112553, 2595957, 7787871]

約数ペア:

[(1, 7787871), (3, 2595957), (7, 1112553), (9, 865319), (13, 599067), (21, 370851), (37, 210483), (39, 199689), (63, 123617), (91, 85581), (111, 70161), (117, 66563), (257, 30303), (259, 30069), (273, 28527), (333, 23387), (481, 16191), (771, 10101), (777, 10023), (819, 9509), (1443, 5397), (1799, 4329), (2313, 3367), (2331, 3341)]