28266861

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 44478720

約数和(自身を除く): 16211859

約数列:

[1, 3, 7, 21, 53, 109, 159, 233, 327, 371, 699, 763, 1113, 1631, 2289, 4893, 5777, 12349, 17331, 25397, 37047, 40439, 76191, 86443, 121317, 177779, 259329, 533337, 1346041, 4038123, 9422287, 28266861]

約数ペア:

[(1, 28266861), (3, 9422287), (7, 4038123), (21, 1346041), (53, 533337), (109, 259329), (159, 177779), (233, 121317), (327, 86443), (371, 76191), (699, 40439), (763, 37047), (1113, 25397), (1631, 17331), (2289, 12349), (4893, 5777)]