19793889

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5683}}^1$

素因数の和:5738

約数の個数: 20

約数和(自身を含む): 30261616

約数和(自身を除く): 10467727

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5683, 17049, 51147, 153441, 244369, 460323, 733107, 2199321, 6597963, 19793889]

約数ペア:

[(1, 19793889), (3, 6597963), (9, 2199321), (27, 733107), (43, 460323), (81, 244369), (129, 153441), (387, 51147), (1161, 17049), (3483, 5683)]