19956893

素因数分解:

${\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 23442048

約数和(自身を除く): 3485155

約数列:

[1, 11, 23, 71, 101, 121, 253, 781, 1111, 1633, 2323, 2783, 7171, 8591, 12221, 17963, 25553, 78881, 164933, 197593, 281083, 867691, 1814263, 19956893]

約数ペア:

[(1, 19956893), (11, 1814263), (23, 867691), (71, 281083), (101, 197593), (121, 164933), (253, 78881), (781, 25553), (1111, 17963), (1633, 12221), (2323, 8591), (2783, 7171)]