20803978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 34722576

約数和(自身を除く): 13918598

約数列:

[1, 2, 13, 26, 73, 97, 113, 146, 194, 226, 949, 1261, 1469, 1898, 2522, 2938, 7081, 8249, 10961, 14162, 16498, 21922, 92053, 107237, 142493, 184106, 214474, 284986, 800153, 1600306, 10401989, 20803978]

約数ペア:

[(1, 20803978), (2, 10401989), (13, 1600306), (26, 800153), (73, 284986), (97, 214474), (113, 184106), (146, 142493), (194, 107237), (226, 92053), (949, 21922), (1261, 16498), (1469, 14162), (1898, 10961), (2522, 8249), (2938, 7081)]