213687453

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{1559}}^1$

素因数の和:1737

約数の個数: 32

約数和(自身を含む): 334264320

約数和(自身を除く): 120576867

約数列:

[1, 3, 7, 21, 61, 107, 183, 321, 427, 749, 1281, 1559, 2247, 4677, 6527, 10913, 19581, 32739, 45689, 95099, 137067, 166813, 285297, 500439, 665693, 1167691, 1997079, 3503073, 10175593, 30526779, 71229151, 213687453]

約数ペア:

[(1, 213687453), (3, 71229151), (7, 30526779), (21, 10175593), (61, 3503073), (107, 1997079), (183, 1167691), (321, 665693), (427, 500439), (749, 285297), (1281, 166813), (1559, 137067), (2247, 95099), (4677, 45689), (6527, 32739), (10913, 19581)]