142809681

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{4903}}^1$

素因数の和:5005

約数の個数: 32

約数和(自身を含む): 232253440

約数和(自身を除く): 89443759

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 511, 1387, 1533, 4161, 4903, 9709, 14709, 29127, 34321, 93157, 102963, 279471, 357919, 652099, 1073757, 1956297, 2505433, 6800461, 7516299, 20401383, 47603227, 142809681]

約数ペア:

[(1, 142809681), (3, 47603227), (7, 20401383), (19, 7516299), (21, 6800461), (57, 2505433), (73, 1956297), (133, 1073757), (219, 652099), (399, 357919), (511, 279471), (1387, 102963), (1533, 93157), (4161, 34321), (4903, 29127), (9709, 14709)]