20410509

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3229}}^1$

素因数の和:3289

約数の個数: 24

約数和(自身を含む): 32403360

約数和(自身を除く): 11992851

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 3229, 6321, 9687, 22603, 67809, 138847, 158221, 416541, 474663, 971929, 2915787, 6803503, 20410509]

約数ペア:

[(1, 20410509), (3, 6803503), (7, 2915787), (21, 971929), (43, 474663), (49, 416541), (129, 158221), (147, 138847), (301, 67809), (903, 22603), (2107, 9687), (3229, 6321)]