18969277

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 20880000

約数和(自身を除く): 1910723

約数列:

[1, 19, 29, 173, 199, 551, 3287, 3781, 5017, 5771, 34427, 95323, 109649, 654113, 998383, 18969277]

約数ペア:

[(1, 18969277), (19, 998383), (29, 654113), (173, 109649), (199, 95323), (551, 34427), (3287, 5771), (3781, 5017)]