19855287

素因数分解:

$3^5\times {\mathrm{101}}^1\times {\mathrm{809}}^1$

素因数の和:925

約数の個数: 24

約数和(自身を含む): 30073680

約数和(自身を除く): 10218393

約数列:

[1, 3, 9, 27, 81, 101, 243, 303, 809, 909, 2427, 2727, 7281, 8181, 21843, 24543, 65529, 81709, 196587, 245127, 735381, 2206143, 6618429, 19855287]

約数ペア:

[(1, 19855287), (3, 6618429), (9, 2206143), (27, 735381), (81, 245127), (101, 196587), (243, 81709), (303, 65529), (809, 24543), (909, 21843), (2427, 8181), (2727, 7281)]