77898879

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 126996480

約数和(自身を除く): 49097601

約数列:

[1, 3, 9, 17, 19, 51, 57, 127, 153, 171, 211, 323, 381, 633, 969, 1143, 1899, 2159, 2413, 2907, 3587, 4009, 6477, 7239, 10761, 12027, 19431, 21717, 26797, 32283, 36081, 41021, 68153, 80391, 123063, 204459, 241173, 369189, 455549, 509143, 613377, 1366647, 1527429, 4099941, 4582287, 8655431, 25966293, 77898879]

約数ペア:

[(1, 77898879), (3, 25966293), (9, 8655431), (17, 4582287), (19, 4099941), (51, 1527429), (57, 1366647), (127, 613377), (153, 509143), (171, 455549), (211, 369189), (323, 241173), (381, 204459), (633, 123063), (969, 80391), (1143, 68153), (1899, 41021), (2159, 36081), (2413, 32283), (2907, 26797), (3587, 21717), (4009, 19431), (6477, 12027), (7239, 10761)]