21090693

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2447}}^1$

素因数の和:2493

約数の個数: 24

約数和(自身を含む): 32254848

約数和(自身を除く): 11164155

約数列:

[1, 3, 13, 17, 39, 51, 169, 221, 507, 663, 2447, 2873, 7341, 8619, 31811, 41599, 95433, 124797, 413543, 540787, 1240629, 1622361, 7030231, 21090693]

約数ペア:

[(1, 21090693), (3, 7030231), (13, 1622361), (17, 1240629), (39, 540787), (51, 413543), (169, 124797), (221, 95433), (507, 41599), (663, 31811), (2447, 8619), (2873, 7341)]