138338991

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{21319}}^1$

素因数の和:21435

約数の個数: 24

約数和(自身を含む): 230597120

約数和(自身を除く): 92258129

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 6489, 21319, 63957, 149233, 191871, 447699, 1343097, 2195857, 6587571, 15370999, 19762713, 46112997, 138338991]

約数ペア:

[(1, 138338991), (3, 46112997), (7, 19762713), (9, 15370999), (21, 6587571), (63, 2195857), (103, 1343097), (309, 447699), (721, 191871), (927, 149233), (2163, 63957), (6489, 21319)]