18809739

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17863}}^1$

素因数の和:17888

約数の個数: 20

約数和(自身を含む): 30261616

約数和(自身を除く): 11451877

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 17863, 53589, 160767, 232219, 482301, 696657, 1446903, 2089971, 6269913, 18809739]

約数ペア:

[(1, 18809739), (3, 6269913), (9, 2089971), (13, 1446903), (27, 696657), (39, 482301), (81, 232219), (117, 160767), (351, 53589), (1053, 17863)]