19509489

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4397}}^1$

素因数の和:4449

約数の個数: 24

約数和(自身を含む): 30873960

約数和(自身を除く): 11364471

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 493, 1479, 4397, 4437, 13191, 39573, 74749, 127513, 224247, 382539, 672741, 1147617, 2167721, 6503163, 19509489]

約数ペア:

[(1, 19509489), (3, 6503163), (9, 2167721), (17, 1147617), (29, 672741), (51, 382539), (87, 224247), (153, 127513), (261, 74749), (493, 39573), (1479, 13191), (4397, 4437)]