19989099

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{463}}^1$

素因数の和:529

約数の個数: 40

約数和(自身を含む): 33012672

約数和(自身を除く): 13023573

約数列:

[1, 3, 9, 13, 27, 39, 41, 81, 117, 123, 351, 369, 463, 533, 1053, 1107, 1389, 1599, 3321, 4167, 4797, 6019, 12501, 14391, 18057, 18983, 37503, 43173, 54171, 56949, 162513, 170847, 246779, 487539, 512541, 740337, 1537623, 2221011, 6663033, 19989099]

約数ペア:

[(1, 19989099), (3, 6663033), (9, 2221011), (13, 1537623), (27, 740337), (39, 512541), (41, 487539), (81, 246779), (117, 170847), (123, 162513), (351, 56949), (369, 54171), (463, 43173), (533, 37503), (1053, 18983), (1107, 18057), (1389, 14391), (1599, 12501), (3321, 6019), (4167, 4797)]