21588105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18691}}^1$

素因数の和:18717

約数の個数: 32

約数和(自身を含む): 43066368

約数和(自身を除く): 21478263

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 18691, 56073, 93455, 130837, 205601, 280365, 392511, 616803, 654185, 1028005, 1439207, 1962555, 3084015, 4317621, 7196035, 21588105]

約数ペア:

[(1, 21588105), (3, 7196035), (5, 4317621), (7, 3084015), (11, 1962555), (15, 1439207), (21, 1028005), (33, 654185), (35, 616803), (55, 392511), (77, 280365), (105, 205601), (165, 130837), (231, 93455), (385, 56073), (1155, 18691)]