28041891

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 42704640

約数和(自身を除く): 14662749

約数列:

[1, 3, 17, 19, 43, 51, 57, 129, 323, 673, 731, 817, 969, 2019, 2193, 2451, 11441, 12787, 13889, 28939, 34323, 38361, 41667, 86817, 217379, 491963, 549841, 652137, 1475889, 1649523, 9347297, 28041891]

約数ペア:

[(1, 28041891), (3, 9347297), (17, 1649523), (19, 1475889), (43, 652137), (51, 549841), (57, 491963), (129, 217379), (323, 86817), (673, 41667), (731, 38361), (817, 34323), (969, 28939), (2019, 13889), (2193, 12787), (2451, 11441)]