21808506

素因数分解:

$2^1\times 3^1\times {\mathrm{257}}^1\times {\mathrm{14143}}^1$

素因数の和:14405

約数の個数: 16

約数和(自身を含む): 43789824

約数和(自身を除く): 21981318

約数列:

[1, 2, 3, 6, 257, 514, 771, 1542, 14143, 28286, 42429, 84858, 3634751, 7269502, 10904253, 21808506]

約数ペア:

[(1, 21808506), (2, 10904253), (3, 7269502), (6, 3634751), (257, 84858), (514, 42429), (771, 28286), (1542, 14143)]