201220317

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{61933}}^1$

素因数の和:61977

約数の個数: 18

約数和(自身を含む): 306759102

約数和(自身を除く): 105538785

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 61933, 185799, 557397, 1176727, 3530181, 10590543, 22357813, 67073439, 201220317]

約数ペア:

[(1, 201220317), (3, 67073439), (9, 22357813), (19, 10590543), (57, 3530181), (171, 1176727), (361, 557397), (1083, 185799), (3249, 61933)]