19918509

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2311}}^1$

素因数の和:2357

約数の個数: 24

約数和(自身を含む): 30462912

約数和(自身を除く): 10544403

約数列:

[1, 3, 13, 17, 39, 51, 169, 221, 507, 663, 2311, 2873, 6933, 8619, 30043, 39287, 90129, 117861, 390559, 510731, 1171677, 1532193, 6639503, 19918509]

約数ペア:

[(1, 19918509), (3, 6639503), (13, 1532193), (17, 1171677), (39, 510731), (51, 390559), (169, 117861), (221, 90129), (507, 39287), (663, 30043), (2311, 8619), (2873, 6933)]