21088095

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1877}}^1$

素因数の和:1999

約数の個数: 32

約数和(自身を含む): 38942208

約数和(自身を除く): 17854113

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 107, 321, 535, 749, 1605, 1877, 2247, 3745, 5631, 9385, 11235, 13139, 28155, 39417, 65695, 197085, 200839, 602517, 1004195, 1405873, 3012585, 4217619, 7029365, 21088095]

約数ペア:

[(1, 21088095), (3, 7029365), (5, 4217619), (7, 3012585), (15, 1405873), (21, 1004195), (35, 602517), (105, 200839), (107, 197085), (321, 65695), (535, 39417), (749, 28155), (1605, 13139), (1877, 11235), (2247, 9385), (3745, 5631)]