19818994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{1409}}^1$

素因数の和:1965

約数の個数: 16

約数和(自身を含む): 32097240

約数和(自身を除く): 12278246

約数列:

[1, 2, 13, 26, 541, 1082, 1409, 2818, 7033, 14066, 18317, 36634, 762269, 1524538, 9909497, 19818994]

約数ペア:

[(1, 19818994), (2, 9909497), (13, 1524538), (26, 762269), (541, 36634), (1082, 18317), (1409, 14066), (2818, 7033)]