21000388598

素因数分解:

$2^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1811}}^1\times {\mathrm{7741}}^1$

素因数の和:9668

約数の個数: 32

約数和(自身を含む): 36361882368

約数和(自身を除く): 15361493770

約数列:

[1, 2, 7, 14, 107, 214, 749, 1498, 1811, 3622, 7741, 12677, 15482, 25354, 54187, 108374, 193777, 387554, 828287, 1356439, 1656574, 2712878, 5798009, 11596018, 14018951, 28037902, 98132657, 196265314, 1500027757, 3000055514, 10500194299, 21000388598]

約数ペア:

[(1, 21000388598), (2, 10500194299), (7, 3000055514), (14, 1500027757), (107, 196265314), (214, 98132657), (749, 28037902), (1498, 14018951), (1811, 11596018), (3622, 5798009), (7741, 2712878), (12677, 1656574), (15482, 1356439), (25354, 828287), (54187, 387554), (108374, 193777)]