208857291

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3217}}^1$

素因数の和:3323

約数の個数: 32

約数和(自身を含む): 315106560

約数和(自身を除く): 106249269

約数列:

[1, 3, 17, 19, 51, 57, 67, 201, 323, 969, 1139, 1273, 3217, 3417, 3819, 9651, 21641, 54689, 61123, 64923, 164067, 183369, 215539, 646617, 1039091, 3117273, 3664163, 4095241, 10992489, 12285723, 69619097, 208857291]

約数ペア:

[(1, 208857291), (3, 69619097), (17, 12285723), (19, 10992489), (51, 4095241), (57, 3664163), (67, 3117273), (201, 1039091), (323, 646617), (969, 215539), (1139, 183369), (1273, 164067), (3217, 64923), (3417, 61123), (3819, 54689), (9651, 21641)]