19988784

素因数分解:

$2^4\times 3^2\times {\mathrm{127}}^1\times {\mathrm{1093}}^1$

素因数の和:1234

約数の個数: 60

約数和(自身を含む): 56432896

約数和(自身を除く): 36444112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 127, 144, 254, 381, 508, 762, 1016, 1093, 1143, 1524, 2032, 2186, 2286, 3048, 3279, 4372, 4572, 6096, 6558, 8744, 9144, 9837, 13116, 17488, 18288, 19674, 26232, 39348, 52464, 78696, 138811, 157392, 277622, 416433, 555244, 832866, 1110488, 1249299, 1665732, 2220976, 2498598, 3331464, 4997196, 6662928, 9994392, 19988784]

約数ペア:

[(1, 19988784), (2, 9994392), (3, 6662928), (4, 4997196), (6, 3331464), (8, 2498598), (9, 2220976), (12, 1665732), (16, 1249299), (18, 1110488), (24, 832866), (36, 555244), (48, 416433), (72, 277622), (127, 157392), (144, 138811), (254, 78696), (381, 52464), (508, 39348), (762, 26232), (1016, 19674), (1093, 18288), (1143, 17488), (1524, 13116), (2032, 9837), (2186, 9144), (2286, 8744), (3048, 6558), (3279, 6096), (4372, 4572)]