19936707921

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{170399213}}^1$

素因数の和:170399232

約数の個数: 12

約数和(自身を含む): 31012656948

約数和(自身を除く): 11075949027

約数列:

[1, 3, 9, 13, 39, 117, 170399213, 511197639, 1533592917, 2215189769, 6645569307, 19936707921]

約数ペア:

[(1, 19936707921), (3, 6645569307), (9, 2215189769), (13, 1533592917), (39, 511197639), (117, 170399213)]