19289391

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{3923}}^1$

素因数の和:4086

約数の個数: 16

約数和(自身を含む): 28252800

約数和(自身を除く): 8963409

約数列:

[1, 3, 11, 33, 149, 447, 1639, 3923, 4917, 11769, 43153, 129459, 584527, 1753581, 6429797, 19289391]

約数ペア:

[(1, 19289391), (3, 6429797), (11, 1753581), (33, 584527), (149, 129459), (447, 43153), (1639, 11769), (3923, 4917)]