19728357

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{13903}}^1$

素因数の和:13960

約数の個数: 16

約数和(自身を含む): 29365248

約数和(自身を除く): 9636891

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 13903, 41709, 152933, 458799, 597829, 1793487, 6576119, 19728357]

約数ペア:

[(1, 19728357), (3, 6576119), (11, 1793487), (33, 597829), (43, 458799), (129, 152933), (473, 41709), (1419, 13903)]