19393389

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{373}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 28880280

約数和(自身を除く): 9486891

約数列:

[1, 3, 9, 53, 109, 159, 327, 373, 477, 981, 1119, 3357, 5777, 17331, 19769, 40657, 51993, 59307, 121971, 177921, 365913, 2154821, 6464463, 19393389]

約数ペア:

[(1, 19393389), (3, 6464463), (9, 2154821), (53, 365913), (109, 177921), (159, 121971), (327, 59307), (373, 51993), (477, 40657), (981, 19769), (1119, 17331), (3357, 5777)]