21067335

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27539}}^1$

素因数の和:27567

約数の個数: 24

約数和(自身を含む): 38666160

約数和(自身を除く): 17598825

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 27539, 82617, 137695, 247851, 413085, 468163, 1239255, 1404489, 2340815, 4213467, 7022445, 21067335]

約数ペア:

[(1, 21067335), (3, 7022445), (5, 4213467), (9, 2340815), (15, 1404489), (17, 1239255), (45, 468163), (51, 413085), (85, 247851), (153, 137695), (255, 82617), (765, 27539)]