27428571

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 43212800

約数和(自身を除く): 15784229

約数列:

[1, 3, 9, 19, 27, 57, 127, 171, 381, 421, 513, 1143, 1263, 2413, 3429, 3789, 7239, 7999, 11367, 21717, 23997, 53467, 65151, 71991, 160401, 215973, 481203, 1015873, 1443609, 3047619, 9142857, 27428571]

約数ペア:

[(1, 27428571), (3, 9142857), (9, 3047619), (19, 1443609), (27, 1015873), (57, 481203), (127, 215973), (171, 160401), (381, 71991), (421, 65151), (513, 53467), (1143, 23997), (1263, 21717), (2413, 11367), (3429, 7999), (3789, 7239)]