19495971

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21881}}^1$

素因数の和:21904

約数の個数: 20

約数和(自身を含む): 31772664

約数和(自身を除く): 12276693

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21881, 65643, 196929, 240691, 590787, 722073, 1772361, 2166219, 6498657, 19495971]

約数ペア:

[(1, 19495971), (3, 6498657), (9, 2166219), (11, 1772361), (27, 722073), (33, 590787), (81, 240691), (99, 196929), (297, 65643), (891, 21881)]