20554287

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{571}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 30146688

約数和(自身を除く): 9592401

約数列:

[1, 3, 13, 39, 71, 169, 213, 507, 571, 923, 1713, 2769, 7423, 11999, 22269, 35997, 40541, 96499, 121623, 289497, 527033, 1581099, 6851429, 20554287]

約数ペア:

[(1, 20554287), (3, 6851429), (13, 1581099), (39, 527033), (71, 289497), (169, 121623), (213, 96499), (507, 40541), (571, 35997), (923, 22269), (1713, 11999), (2769, 7423)]