19290257

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3449}}^1$

素因数の和:3520

約数の個数: 16

約数和(自身を含む): 23846400

約数和(自身を除く): 4556143

約数列:

[1, 7, 17, 47, 119, 329, 799, 3449, 5593, 24143, 58633, 162103, 410431, 1134721, 2755751, 19290257]

約数ペア:

[(1, 19290257), (7, 2755751), (17, 1134721), (47, 410431), (119, 162103), (329, 58633), (799, 24143), (3449, 5593)]