19960317

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 64

約数和(自身を含む): 34809600

約数和(自身を除く): 14849283

約数列:

[1, 3, 9, 13, 19, 27, 39, 41, 57, 73, 117, 123, 171, 219, 247, 351, 369, 513, 533, 657, 741, 779, 949, 1107, 1387, 1599, 1971, 2223, 2337, 2847, 2993, 4161, 4797, 6669, 7011, 8541, 8979, 10127, 12483, 14391, 18031, 21033, 25623, 26937, 30381, 37449, 38909, 54093, 56867, 80811, 91143, 116727, 162279, 170601, 273429, 350181, 486837, 511803, 739271, 1050543, 1535409, 2217813, 6653439, 19960317]

約数ペア:

[(1, 19960317), (3, 6653439), (9, 2217813), (13, 1535409), (19, 1050543), (27, 739271), (39, 511803), (41, 486837), (57, 350181), (73, 273429), (117, 170601), (123, 162279), (171, 116727), (219, 91143), (247, 80811), (351, 56867), (369, 54093), (513, 38909), (533, 37449), (657, 30381), (741, 26937), (779, 25623), (949, 21033), (1107, 18031), (1387, 14391), (1599, 12483), (1971, 10127), (2223, 8979), (2337, 8541), (2847, 7011), (2993, 6669), (4161, 4797)]