21349263

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2477}}^1$

素因数の和:2523

約数の個数: 24

約数和(自身を含む): 32650128

約数和(自身を除く): 11300865

約数列:

[1, 3, 13, 17, 39, 51, 169, 221, 507, 663, 2477, 2873, 7431, 8619, 32201, 42109, 96603, 126327, 418613, 547417, 1255839, 1642251, 7116421, 21349263]

約数ペア:

[(1, 21349263), (3, 7116421), (13, 1642251), (17, 1255839), (39, 547417), (51, 418613), (169, 126327), (221, 96603), (507, 42109), (663, 32201), (2477, 8619), (2873, 7431)]