19917081

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{373}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 30630600

約数和(自身を除く): 10713519

約数列:

[1, 3, 9, 17, 51, 153, 349, 373, 1047, 1119, 3141, 3357, 5933, 6341, 17799, 19023, 53397, 57069, 130177, 390531, 1171593, 2213009, 6639027, 19917081]

約数ペア:

[(1, 19917081), (3, 6639027), (9, 2213009), (17, 1171593), (51, 390531), (153, 130177), (349, 57069), (373, 53397), (1047, 19023), (1119, 17799), (3141, 6341), (3357, 5933)]